Contact lens and product thereof

ABSTRACT

A contact lens includes a central region, an annular region and a peripheral region. The central region includes a central point of the contact lens. The annular region symmetrically surrounds the central region. The peripheral region symmetrically surrounds the annular region. The peripheral region includes at least one color pattern portion. The annular region includes at least one power of critical point.

RELATED APPLICATIONS

The present application is a continuation of the application Ser. No.16/882,609, filed May 25, 2020, which is a continuation of theapplication Ser. No. 16/013,997, filed Jun. 21, 2018, now U.S. Pat. No.10,698,232 issued on Jun. 30, 2020, which claims priority to U.S.Provisional Application Ser. No. 62/523,815, filed Jun. 23, 2017, TaiwanApplication Serial Number 106122920, filed Jul. 7, 2017, and TaiwanApplication Serial Number 106128791, filed Aug. 24, 2017, which areincorporated herein by reference in their entireties.

BACKGROUND Technical Field

The present disclosure relates to a contact lens and a product thereof.More particularly, the present disclosure relates to a contact lens anda product thereof, both of which can moderate an increase degree of adiopter away from a central region and can be applied to prevent orcontrol myopia.

Description of Related Art

Conventionally, in the design of the defocus degree of a contact lenswith vision control function, the diopter is increased rapidly once awayfrom the central region. The change of the diopter is so drastic thatthe discomfort of the wearer is severe. As a result, it is difficult forthe wearer to cooperate with the treatment plan for a long time, and theeffect of the vision control is poor. Moreover, a conventional contactlens is featured with an identification function for observe side andreverse side by disposing small concave grooves or small protruding dotson the surface thereof. However, the small concave grooves tend to causethe break of the contact lens, and the small protruding dots tend tocause a severe foreign body sensation of the wearer. Moreover, it isdifficult for the contact lens with vision control function to controlthe amount of the entering light rays. When the amount of the enteringlight rays is excessively much, it tends to cause the photophobia of thewearer. When the amount of the entering light rays is excessively less,it tends to generate an unclear image. Therefore, how to improve thestructure of the contact lens for featuring the contact lens with thevision control function and preventing the aforementioned drawbacks isthe goal of the relevant industry.

SUMMARY

According to one aspect of the present disclosure, a contact lensincludes a central region, an annular region and a peripheral region.The central region includes a central point of the contact lens. Theannular region symmetrically surrounds the central region. Theperipheral region symmetrically surrounds the annular region. Theperipheral region includes at least one color pattern portion, and theannular region includes at least one power of critical point.

When a diopter of the central region is POWC, and a maximum diopter ofthe annular region is PPmax, the following conditions are satisfied:

−0.50 D≤POWC≤0.50 D; and

2.00 D≤|PPmax−POWC|≤20.00 D.

According to another aspect of the present disclosure, a contact lensincludes a central region, an annular region and a peripheral region.The central region includes a central point of the contact lens. Theannular region symmetrically surrounds the central region. Theperipheral region symmetrically surrounds the annular region. Theperipheral region includes at least one color pattern portion, and theannular region includes at least one power of critical point. When adiopter of the central region is POWC, and a maximum diopter of theannular region is PPmax, the following condition is satisfied:

2.00 D≤|PPmax−POWC|≤20.00 D.

According to yet another aspect of the present disclosure, a contactlens includes a central region, an annular region and a peripheralregion. The central region includes a central point of the contact lens.The annular region symmetrically surrounds the central region. Theperipheral region symmetrically surrounds the annular region. Thecontact lens further includes at least one light blocking ring disposedoutside the central region, and the annular region includes at least onepower of critical point. When a diopter of the central region is POWC,and a maximum diopter of the annular region is PPmax, the followingcondition is satisfied:

2.00 D≤|PPmax−POWC|≤20.00 D.

According to yet another aspect of the present disclosure, a contactlens includes a central region, an annular region and a peripheralregion. The central region includes a central point of the contact lens.The annular region symmetrically surrounds the central region. Theperipheral region symmetrically surrounds the annular region. Theannular region includes at least two powers of critical points, in orderfrom the central point to a periphery, the two powers of critical pointsare a power of a first critical point and a power of a second criticalpoint. The power of the first critical point is a high power of criticalpoint, and the power of the second critical point is a low power ofcritical point. When a diopter of the central region is POWC, a maximumdiopter of the annular region is PPmax, and the power of the firstcritical point is PCP1, the following conditions are satisfied:

2.00 D≤|PPmax−POWC|≤20.00 D; and

0 D<PCP1−POWC≤3.80 D.

According to yet another aspect of the present disclosure, a contactlens includes a central region, an annular region and a peripheralregion. The central region includes a central point of the contact lens.The annular region symmetrically surrounds the central region. Theperipheral region symmetrically surrounds the annular region. Theannular region includes at least two powers of critical points, in orderfrom the central point to a periphery, the two powers of critical pointsare a power of a first critical point and a power of a second criticalpoint. The power of the first critical point is a high power of criticalpoint. When a diopter of the central region is POWC, a maximum diopterof the annular region is PPmax, and the power of the first criticalpoint is PCP1, the following conditions are satisfied:

2.00 D≤|PPmax−POWC|≤20.00 D; and

4.00 D≤PCP1−POWC≤20.00 D.

According to yet another aspect of the present disclosure, a contactlens includes a central region, an annular region and a peripheralregion. The central region includes a central point of the contact lens.The annular region symmetrically surrounds the central region. Theperipheral region symmetrically surrounds the annular region. Theannular region includes at least one power of critical point, and apower of critical point closest to the central point is a power of afirst critical point. The power of the first critical point is a lowpower of critical point. When a diopter of the central region is POWC, amaximum diopter of the annular region is PPmax, and the power of thefirst critical point is PCP1, the following conditions are satisfied:

2.00 D≤|PPmax−POWC|≤20.00 D; and

−5.00 D≤PCP1−POWC<0 D.

According to yet another aspect of the present disclosure, a contactlens product includes the contact lens according to any of theaforementioned aspects and an immersing solution. The contact lens isimmersed in the immersing solution. At least one of the contact lens andthe immersing solution includes a cycloplegic agent.

BRIEF DESCRIPTION OF THE DRAWINGS

The present disclosure can be more fully understood by reading thefollowing detailed description of the embodiments, with reference madeto the accompanying drawings as follows:

FIG. 1 is a schematic view showing regions of a contact lens accordingto the 1st embodiment of the present disclosure.

FIG. 2A is a schematic view showing regions of a contact lens accordingto the 2nd embodiment of the present disclosure.

FIG. 2B is a side view of the contact lens in FIG. 2A.

FIG. 2C is a top view of the contact lens in FIG. 2A.

FIG. 3A is a schematic view showing regions of a contact lens accordingto the 3rd embodiment of the present disclosure.

FIG. 3B is a side view of the contact lens in FIG. 3A.

FIG. 3C is a top view of the contact lens in FIG. 3A.

FIG. 4 is a schematic view showing a light blocking ring of a contactlens according to the 4th embodiment of the present disclosure.

FIG. 5 is a schematic view showing a light blocking ring of a contactlens according to the 5th embodiment of the present disclosure.

FIG. 6 is a schematic view showing a light blocking ring of a contactlens according to the 6th embodiment of the present disclosure.

FIG. 7 is a schematic view showing a light blocking ring of a contactlens according to the 7th embodiment of the present disclosure.

FIG. 8 is a schematic view showing a light blocking ring of a contactlens according to the 8th embodiment of the present disclosure.

FIG. 9 is a schematic view showing a light blocking ring of a contactlens according to the 9th embodiment of the present disclosure.

FIG. 10 is a schematic view showing a light blocking ring of a contactlens according to the 10th embodiment of the present disclosure.

FIG. 11 is a schematic view showing a light blocking ring of a contactlens according to the 11th embodiment of the present disclosure.

FIG. 12 shows a relationship between a radius and a diopter of a contactlens of the 1st example.

FIG. 13 shows a relationship between a radius and a diopter of a contactlens of the 2nd example.

FIG. 14 shows a relationship between a radius and a diopter of a contactlens of the 5th example.

FIG. 15 shows a relationship between a radius and a diopter of a contactlens of the 6th example.

FIG. 16 shows a relationship between a radius and a diopter of a contactlens of the 7th example.

FIG. 17 shows a relationship between a radius and a diopter of a contactlens of the 9th example.

FIG. 18 shows a relationship between a radius and a diopter of a contactlens of the 10th example.

FIG. 19 shows a relationship between a radius and a diopter of a contactlens of the 12th example.

FIG. 20 shows a relationship between a radius and a diopter of a contactlens of the 16th example.

FIG. 21 shows a relationship between a radius and a diopter of a contactlens of the 21st example.

FIG. 22 shows a relationship between a radius and a diopter of a contactlens of the 26th example.

FIG. 23 shows a relationship between a radius and a diopter of a contactlens of the 27th example.

FIG. 24 shows a relationship between a radius and a diopter of a contactlens of the 28th example.

FIG. 25 shows a relationship between a radius and a diopter of a contactlens of the 29th example.

FIG. 26 shows a relationship between a radius and a diopter of a contactlens of the 30th example.

FIG. 27 is a schematic view showing a contact lens product according tothe 12th embodiment of the present disclosure.

DETAILED DESCRIPTION 1st Embodiment

FIG. 1 is a schematic view showing regions of a contact lens 100according to the 1st embodiment of the present disclosure. In FIG. 1,the contact lens 100 includes a central region 110, an annular region120 and a peripheral region 130. The central region 110 includes acentral point O of the contact lens 100. The annular region 120symmetrically surrounds the central region 110. The peripheral region130 symmetrically surrounds the annular region 120. The annular region120 includes at least one power of critical point. With the power ofcritical point, the moderate effect of a large margin or a small marginby stage can be provided, which can effectively moderate the increasedegree of the diopter away from the central region 110, and the wearcomfort can be provided. Accordingly, the possibility of long termtreatment can be enhanced.

When a diopter of the central region 110 is POWC, the followingcondition can be satisfied: −0.50 D≤POWC≤0.50 D. Therefore, when thecontact lens is applied to a potential myopic patient, light rays can bewell focused on the retina so as to provide a clear image. Specifically,when the diopter of the central region 110 is low or zero, and a properand moderate defocus design of the annular region 120 is provided, thelight rays can be focused in front of the retina, so that the preventionof myopia can be achieved, and the increase in axial length of the eyecan be prevented. Alternatively, the following condition can besatisfied: −0.25 D≤POWC≤0.25 D.

When the diopter of the central region 110 is POWC, the followingcondition can be satisfied: −8.00 D≤POWC<0 D. Therefore, when thecontact lens is applied to a low-moderate myopic patient, a function ofcorrecting myopia can be provided by the diopter of the central region110. The diopter of the central region 110 can be adjusted according topractical demands, so that the light rays can be well focused on theretina so as to provide a clear image. Alternatively, the followingcondition can be satisfied: −7.00 D≤POWC≤−0.25 D. Alternatively, thefollowing condition can be satisfied: −6.50 D≤POWC<0 D. Alternatively,the following condition can be satisfied: −5.50 D≤POWC<0 D.Alternatively, the following condition can be satisfied: −4.50 D≤POWC<0D.

When the diopter of the central region 110 is POWC, and a maximumdiopter of the annular region 120 is PPmax, the following condition issatisfied: 2.00 D≤|PPmax−POWC|≤20.00 D. Therefore, the annular region120 is arranged with an increase of diopter, so that the light rays ofthe annular region 120 can be focused in front of the retina. With thedefocus effect, the functions of preventing myopia and controllingmyopia can be achieved, and the increase in axial length of the eye canbe prevented. Alternatively, the following condition can be satisfied:2.00 D≤|PPmax−POWC|≤8.00 D. Alternatively, the following condition canbe satisfied: 3.50 D≤|PPmax−POWC|≤19.00 D. Alternatively, the followingcondition can be satisfied: 5.50 D≤|PPmax−POWC|≤17.00 D. Alternatively,the following condition can be satisfied: 8.00 D≤|PPmax−POWC|≤15.00 D.Alternatively, the following condition can be satisfied: 9.50D≤|PPmax−POWC|≤15.50 D.

When the maximum diopter of the annular region 120 is PPmax, thefollowing condition can be satisfied: 0 D≤PPmax≤15.00 D. Therefore, thedefocus effect outside the central region 110 can be properly enhancedaccording to the demand of the wearer. Alternatively, the followingcondition can be satisfied: 0.50 D≤PPmax≤13.00 D. Alternatively, thefollowing condition can be satisfied: 1.50 D≤PPmax≤12.50 D.Alternatively, the following condition can be satisfied: 2.00D≤PPmax≤10.5 D. Alternatively, the following condition can be satisfied:2.00 D≤PPmax≤9.00 D.

The annular region 120 can include at least one high power of criticalpoint. When the high power of critical point is PPH, the followingcondition can be satisfied: −5.00 D≤PPH≤20.00. Therefore, the increasedegree of the diopter can be moderated. Alternatively, the followingcondition can be satisfied: −5.00 D≤PPH≤18.00 D. Alternatively, thefollowing condition can be satisfied: −3.00 D≤PPH≤16.00 D.Alternatively, the following condition can be satisfied: −1.00D≤PPH≤16.00 D. Alternatively, the following condition can be satisfied:−1.00 D≤PPH≤14.00 D.

The annular region 120 can include at least one medium power of criticalpoint. When the medium power of critical point is PPM, the followingcondition can be satisfied: −6.00 D≤PPM≤0 D. Therefore, a clear focusarea can be provided in the periphery of the retina, and the discomfortof wearing the contact lens 100 can be eased. Alternatively, thefollowing condition can be satisfied: −3.00 D PPM 0 D.

The annular region 120 can include at least one low power of criticalpoint. When the low power of critical point is PPL, the followingcondition can be satisfied: −10.00 D≤PPL≤0 D. Therefore, the designfreedom for the increase of the diopter can be enhanced, and a moderatechange of the diopter can be provided. Alternatively, the followingcondition can be satisfied: −9.00 D≤PPL 0 D. Alternatively, thefollowing condition can be satisfied: −4.00 D≤PPL≤0 D.

The annular region 120 can include at least one high power of criticalpoint. When the maximum diopter of the annular region 120 is PPmax, andthe high power of critical point is PPH, the following condition can besatisfied: −5.00≤|PPmax/PPH|≤60.00. Therefore, the defocus degreeoutside the central region 110 can be properly arranged according to thesituation of the wearer. Moreover, with the high power of criticalpoint, it is favorable for enhancing the defocus degree by stage, andthe discomfort caused by the high defocus degree in the periphery can beeased. Alternatively, the following condition can be satisfied:−5.00≤|PPmax/PPH|≤30.00. Alternatively, the following condition can besatisfied: −5.00≤|PPmax/PPH|≤20.00. Alternatively, the followingcondition can be satisfied: −3.00≤|PPmax/PPH|≤20.00. Alternatively, thefollowing condition can be satisfied: −5.00≤|PPmax/PPH|≤15.00.Alternatively, the following condition can be satisfied:−3.00≤|PPmax/PPH|≤18.00. Alternatively, the following condition can besatisfied: −3.00≤|PPmax/PPH|≤15.00. Alternatively, the followingcondition can be satisfied: −3.00≤|PPmax/PPH|≤10.00. Alternatively, thefollowing condition can be satisfied: −3.00≤|PPmax/PPH|≤9.00.Alternatively, the following condition can be satisfied:−3.00≤|PPmax/PPH|≤5.00.

The annular region 120 can include at least one low power of criticalpoint. When the maximum diopter of the annular region 120 is PPmax, andthe low power of critical point is PPL, the following condition can besatisfied: −40.00≤|PPmax/PPL|≤0. Therefore, the defocus degree outsidethe central region 110 can be properly arranged according to thesituation of the wearer. Moreover, with the low power of critical point,it is favorable for gradually moderating the defocus degree, and thedesign difficulty of high defocus can be reduced. Alternatively, thefollowing condition can be satisfied: −30.00≤|PPmax/PPL|≤0.Alternatively, the following condition can be satisfied:−25.00≤|PPmax/PPL|≤0. Alternatively, the following condition can besatisfied: −20.00≤|PPmax/PPL|≤0. Alternatively, the following conditioncan be satisfied: −15.00≤|PPmax/PPL|≤0. Alternatively, the followingcondition can be satisfied: −10.00≤|PPmax/PPL|≤0.

When a maximum diameter of the central region 110 is DiC, the followingcondition can be satisfied: 1.0 mm≤DiC≤4.5 mm. Therefore, a clearcentral vision range can be provided according to the situation of thewearer, which is favorable for reducing the wearing discomfort.Alternatively, the following condition can be satisfied: 1.4 mm≤DiC≤4.5mm. Alternatively, the following condition can be satisfied: 1.4mm≤DiC≤3.5 mm. Alternatively, the following condition can be satisfied:2.0 mm≤DiC≤3.0 mm.

When a maximum diameter of the annular region 120 is DiP, the followingcondition can be satisfied: DiP≤8.0 mm. Therefore, a proper range of theannular region 120 can be provided for achieving the control and theprevention of myopia.

The annular region 120 can include at least one power of critical point,and a power of critical point closest to the central point O is a powerof a first critical point. The power of the first critical point can bea low power of critical point. Therefore, the diopter can be properlyreduced and the change of the diopter can be moderated, so that thediscomfort of the wearer caused by the defocus can be eased.

The annular region 120 can include at least two powers of criticalpoints, in order from the central point O to a periphery (its referencenumeral is omitted), the two powers of critical points are a power of afirst critical point and a power of a second critical point. The powerof the first critical point can be a high power of critical point.Therefore, the diopter of the inner side of the annular region 120 canbe enhanced immediately, which can enhance the effect of preventing orcontrolling myopia.

The power of the first critical point can be a high power of criticalpoint, and the power of the second critical point can be a low power ofcritical point. When the power of the first critical point is a highpower of critical point, the diopter of the inner side of the annularregion 120 can be enhanced immediately, which can enhance the effect ofpreventing or controlling myopia. Meanwhile, when the power of thesecond critical point is a low power of critical point, the diopter canbe properly reduced and the change of the diopter can be moderated, sothat the discomfort of the wearer caused by the defocus can be eased.

The power of the second critical point can be a high power of criticalpoint. Therefore, it is favorable for enhancing the degree of defocus,and the effect of preventing or controlling myopia can be obtained in ashort period.

The power of the second critical point can be a medium power of criticalpoint. Therefore, it is favorable for moderating the degree of defocus,so that the annular region 120 has a clear focusing effect, and thevision comfort of the wearer can be increased.

The power of the second critical point can be a low power of criticalpoint. Therefore, it is favorable for moderating the degree of defocus,and the wearing discomfort can be reduced.

When the diopter of the central region 110 is POWC, and the first powerof critical point is PCP1, the following condition can be satisfied: 0D<PCP1−POWC≤3.80 D. Therefore, the diopter difference between the firstcritical point and the central region 110 is proper, which is favorablefor enhancing the degree of defocus by a small margin, and the effect ofpreventing or controlling myopia can be enhanced. Alternatively, thefollowing condition can be satisfied: 0 D<PCP1−POWC≤3.5 D.

When the diopter of the central region 110 is POWC, and the power offirst critical point is PCP1, the following condition can be satisfied:4.00 D≤PCP1−POWC≤20.00 D. Therefore, the diopter difference between thefirst critical point and the central region 110 can be properlydesigned, which is favorable for properly enhancing the degree ofdefocus by stage, and the effect of preventing or controlling myopia canbe enhanced. Alternatively, the following condition can be satisfied:4.5 D≤PCP1−POWC≤18 D. Alternatively, the following condition can besatisfied: 4.5 D≤PCP1−POWC≤10 D.

When the diopter of the central region 110 is POWC, and the power offirst critical point is PCP1, the following condition can be satisfied:−6.00 D≤PCP1−POWC≤10 D. Therefore, the diopter difference between thefirst critical point and the central region 110 can be properlydesigned, which is favorable for properly enhancing the degree ofdefocus by a small margin, and the effect of preventing or controllingmyopia can be enhanced. Alternatively, the following condition can besatisfied: −6.00 D≤PCP1−POWC<0 D. Alternatively, the following conditioncan be satisfied: −5.00 D≤PCP1−POWC<0 D. Alternatively, the followingcondition can be satisfied: −4.00 D≤PCP1−POWC<0 D.

When the power of the first critical point is PCP1, and the power of thesecond critical point is PCP2, the following condition can be satisfied:−14.00 D≤PCP2−PCP1≤16 D. Therefore, the discomfort results from thedesign of defocus can be prevented.

When the power of the first critical point is PCP1, and the power of thesecond critical point is PCP2, the following condition can be satisfied:−7.00 D≤PCP2−PCP1≤0 D. Therefore, the diopter difference between thesecond critical point and the first critical point can be properlydesigned, so that the diopter can be reduced by a small margin, and thediscomfort results from the design of defocus can be eased.Alternatively, the following condition can be satisfied: −6.00D≤PCP2−PCP1≤0 D. Alternatively, the following condition can besatisfied: −5.00 D≤PCP2−PCP1≤0 D.

When the power of the first critical point is PCP1, and the power of thesecond critical point is PCP2, the following condition can be satisfied:−14.00 D≤PCP2−PCP1≤−7.50 D. Therefore, the diopter difference betweenthe second critical point and the first critical point can be properlydesigned, so that the diopter can be reduced by a larger margin, and thediscomfort results from the design of defocus can be improved quickly.Alternatively, the following condition can be satisfied: −12.00D≤PCP2−PCP1≤−7.50 D. Alternatively, the following condition can besatisfied: −10.00 D≤PCP2−PCP1≤−7.50 D.

When the diopter of the central region 110 is POWC, the power of thefirst critical point is PCP1, and the power of the second critical pointis PCP2, the following condition can be satisfied:−25≤(PCP2−PCP1)/(PCP1−POWC)≤0. Therefore, the discomfort can be eased,and the success rate for preventing or controlling myopia can beenhanced.

When the diopter of the central region 110 is POWC, the power of thefirst critical point is PCP1, and the power of the second critical pointis PCP2, the following condition can be satisfied:−1.75≤(PCP2−PCP1)/(PCP1−POWC)≤0. Therefore, the ratio of the differencesof the diopters can be properly designed, so that a moderate defocusdesign can be achieved by changing the diopter by a smaller margin,which is favorable for the long term wearing and the gradual adaption ofthe wearer. Accordingly, the success rate for preventing or controllingmyopia can be enhanced. Alternatively, the following condition can besatisfied: −1.6≤(PCP2−PCP1)/(PCP1−POWC)≤0.

When the diopter of the central region 110 is POWC, the power of thefirst critical point is PCP1, and the power of the second critical pointis PCP2, the following condition can be satisfied:−25≤(PCP2−PCP1)/(PCP1−POWC)≤−1.9. Therefore, the ratio of thedifferences of the diopters can be properly designed, and a moresignificant defocus design can be achieved by changing the diopter by alarger margin, which is favorable for the wearer to obtain the effect ofpreventing or controlling myopia in a short period. Alternatively, thefollowing condition can be satisfied: −15≤(PCP2−PCP1)/(PCP1−POWC)≤−2.

The annular region 120 can include at least three powers of criticalpoints, in order from the central point O to the periphery, the threepowers of critical points are the power of the first critical point, thepower of the second critical point and a power of a third criticalpoint. When the power of the second critical point is PCP2, and thepower of the third critical point is PCP3, the following condition canbe satisfied: −20.00 D≤PCP3−PCP2≤20.00 D. Therefore, the discomfort canbe eased, and the effect of preventing or controlling myopia can beenhanced.

When the power of the second critical point is PCP2, and the power ofthe third critical point is PCP3, the following condition can besatisfied: 0 D≤PCP3−PCP2≤12.00 D. Therefore, the diopter differencebetween the third critical point and the second critical point can beproperly designed, so that the diopter can be moderately enhanced by asmall margin, and the adaption of the wearer for the treatment ofpreventing or controlling myopia can be enhanced.

When the power of the second critical point is PCP2, and the power ofthe third critical point is PCP3, the following condition can besatisfied: 14.00 D≤PCP3−PCP2≤20.00 D. Therefore, the diopter differencebetween the third critical point and the second critical point can beproperly designed for enhancing the diopter by a larger margin, so thata more significant effect of preventing or controlling myopia can beachieved.

The power of the third critical point can be a high power of criticalpoint. Therefore, it is favorable for enhancing the degree of defocus,and the effect of preventing or controlling myopia can be obtained in ashort period.

The power of the third critical point can be a medium power of criticalpoint. Therefore, it is favorable for moderating the degree of defocus,so that the annular region 120 has a clear focusing effect, and thevision comfort of the wearer can be increased.

The power of the third critical point can be a low power of criticalpoint. Therefore, it is favorable for moderating the degree of defocus,and the wearing discomfort can be reduced.

The annular region 120 can include at least four powers of criticalpoints, in order from the central point O to the periphery, the fourpowers of critical points are the power of the first critical point, thepower of the second critical point, the power of the third criticalpoint and a power of a fourth critical point. When the power of thethird critical point is PCP3, and the power of the fourth critical pointis PCP4, the following condition can be satisfied: −15.00D≤PCP4−PCP3≤12.00 D. Therefore, the diopter can be enhanced by a largermargin, and a more significant effect of preventing or controllingmyopia can be achieved.

The power of the fourth critical point can be a high power of criticalpoint. Therefore, it is favorable for enhancing the degree of defocus,and the effect of preventing or controlling myopia can be obtained in ashort period.

The power of the fourth critical point can be a low power of criticalpoint. Therefore, it is favorable for moderating the degree of defocus,and the wearing discomfort can be reduced.

The annular region 120 can include at least five powers of criticalpoints, in order from the central point O to the periphery, the fivepowers of critical points are the power of the first critical point, thepower of the second critical point, the power of the third criticalpoint, the power of the fourth critical point and a power of a fifthcritical point. When the power of the fourth critical point is PCP4, andthe power of the fifth critical point is POPS, the following conditioncan be satisfied: −5.00 D≤PCP5−PCP4≤5.00 D. Therefore, the diopter canbe moderately enhanced by a small margin, and the adaption of the wearerfor the treatment of preventing or controlling myopia can be enhanced.

The power of the fifth critical point can be a high power of criticalpoint. Therefore, it is favorable for enhancing the degree of defocus,and the effect of preventing or controlling myopia can be obtained in ashort period.

The power of the fifth critical point can be a low power of criticalpoint. Therefore, it is favorable for moderating the degree of defocus,and the wearing discomfort can be reduced.

The annular region 120 can include at least six powers of criticalpoints, in order from the central point O to the periphery, the sixpowers of critical points are the power of the first critical point, thepower of the second critical point, the power of the third criticalpoint, the power of the fourth critical point, the power of the fifthcritical point and a power of a sixth critical point. When the power ofthe fifth critical point is PCP5, and the power of the sixth criticalpoint is PCP6, the following condition can be satisfied: −5.00D≤PCP6−PCP5≤15.00 D. Therefore, the diopter can be enhanced by a largermargin, and a more significant effect of preventing or controllingmyopia can be achieved.

The power of the sixth critical point can be a high power of criticalpoint. Therefore, it is favorable for enhancing the degree of defocus,and the effect of preventing or controlling myopia can be obtained in ashort period.

The power of the sixth critical point can be a low power of criticalpoint. Therefore, it is favorable for moderating the degree of defocus,and the wearing discomfort can be reduced.

The definitions of the power of critical point, the high power ofcritical point, the low power of critical point and the medium power ofcritical point are as follows. The annular region 120 of the contactlens 100 can include at least one critical point (not shown), and adiopter of the critical point is the power of critical point. Accordingto the relationship of the power of critical point and the diopter ofthe central region 110, the critical points are divided into threeclasses: the high critical point (CH), the low critical point (CL) andthe medium critical point (CM). When a critical point has a power ofcritical point which is higher than the diopter of the central region110, the critical point is defined as a high critical point, and thepower of critical point thereof is defined as a high power of criticalpoint. When a critical point has a power of critical point which islower than the diopter of the central region 110, the critical point isdefined as a low critical point, and the power of critical point thereofis defined as a low power of critical point. When a critical point has apower of critical point which is equal to the diopter of the centralregion 110, the critical point is defined as a medium critical point,and the power of critical point thereof is defined as a medium power ofcritical point.

2nd Embodiment

FIG. 2A is a schematic view showing regions of a contact lens 200according to the 2nd embodiment of the present disclosure. FIG. 2B is aside view of the contact lens 200 in FIG. 2A. FIG. 2C is a top view ofthe contact lens 200 in FIG. 2A. In FIG. 2A to FIG. 2C, the contact lens200 includes a central region 210, an annular region 220 and aperipheral region 230. The central region 210 includes a central point Oof the contact lens 200. The annular region 220 symmetrically surroundsthe central region 210. The peripheral region 230 symmetricallysurrounds the annular region 220. The annular region 220 includes atleast one power of critical point. The peripheral region 230 can includeat least one color pattern portion.

Specifically, in the 2nd embodiment, the peripheral region 230 includestwo color pattern portions, which are a first color pattern portion 240Aand a second color pattern portion 240B, respectively. The pattern ofthe first color pattern portion 240A is an annular pattern, and thepattern of the second color pattern portion 240B is a radial pattern. Acolor of the first color pattern portion 240A can be selected from red,orange, yellow, green, blue, indigo, purple, black, white, silver orgold, and a color of the second color pattern portion 240B is differentfrom the color of the first color pattern portion 240A. Due to differentpenetration effects of visible light can be provided by differentcolors, the penetration ability of light (for enhancing or reducing theamount of entering light rays) can be effectively controlled byselecting a proper color. The color pattern portion with a dark colorcan reduce the photophobia effect, and the color pattern portion with alight color can enhance the amount of entering light rays. When thecolor pattern portion has a lower light transmittance, a higher lightblocking effect can be provided thereby, and the vision control effectinterfered by the glare and stray light can be reduced. With the disposeof the at least two color pattern portions, i.e. the first color patternportion 240A and the second color pattern portion 240B, the effect forreducing the stray light can be selectively adjusted.

In other embodiments, the minimum inner radius of the color patternportion can be arranged inside the annular region. That is, a partial ofthe annular region is covered by the color pattern portion, so that thestray light in the peripheral portion of the annular region can beblocked, which is favorable for preventing the interference of theimaging at the defocus area and easing the discomfort of the wearer.

Other details of the contact lens 200 can be the same as that of thecontact lens 100 in FIG. 1, and are not repeated herein.

3rd Embodiment

FIG. 3A is a schematic view showing regions of a contact lens 300according to the 3rd embodiment of the present disclosure. FIG. 3B is aside view of the contact lens 300 in FIG. 3A. FIG. 3C is a top view ofthe contact lens 300 in FIG. 3A. In FIG. 3A to FIG. 3C, the contact lens300 includes a central region 310, an annular region 320 and aperipheral region 330. The central region 310 includes a central point Oof the contact lens 300. The annular region 320 symmetrically surroundsthe central region 310. The peripheral region 330 symmetricallysurrounds the annular region 320. The annular region 320 includes atleast one power of critical point. The peripheral region 330 can includeat least one color pattern portion.

Specifically, in the 3rd embodiment, the peripheral region 330 includestwo color pattern portions, which are a first color pattern portion 340Aand a second color pattern portion 340B, respectively. The pattern ofthe first color pattern portion 340A is an annular pattern, and thepattern of the second color pattern portion 340B includes a plurality ofletters of L. With the function of directional identification providedby the pattern of the second color pattern portion 340B, it is favorablefor featuring the contact lens 300 with an identification function forobserve side and reverse side. Accordingly, the wearing correctness canbe enhanced, and the wearing convenience and efficiency can be enhanced.A color of the first color pattern portion 340A can be selected fromred, orange, yellow, green, blue, indigo, purple, black, white, silveror gold, and a color of the second color pattern portion 340B isdifferent from the color of the first color pattern portion 340A. Due todifferent penetration effects of visible light can be provided bydifferent colors, the penetration ability of light (for enhancing orreducing the amount of entering light rays) can be effectivelycontrolled by selecting a proper color. The color pattern portion with adark color can reduce the photophobia effect, and the color patternportion with a light color can enhance the amount of entering lightrays. When the color pattern portion has a lower light transmittance, ahigher light blocking effect can be provided thereby, and the visioncontrol effect interfered by the glare and stray light can be reduced.With the dispose of the at least two color pattern portions, i.e. thefirst color pattern portion 340A and the second color pattern portion340B, the effect for reducing the stray light can be selectivelyadjusted.

In other embodiments, the minimum inner radius of the color patternportion can be arranged inside the annular region. That is, a partial ofthe annular region is covered by the color pattern portion, so that thestray light in the peripheral portion of the annular region can beblocked, which is favorable for preventing the interference of theimaging at the defocus area and easing the discomfort of the wearer.

Other details of the contact lens 300 can be the same as that of thecontact lens 100 in FIG. 1, and are not repeated herein.

4th Embodiment

FIG. 4 is a schematic view showing a light blocking ring 450 of acontact lens 400 according to the 4th embodiment of the presentdisclosure. In FIG. 4, the contact lens 400 includes a central region(its reference numeral is omitted), an annular region (its referencenumeral is omitted) and a peripheral region (its reference numeral isomitted). The central region includes a central point O of the contactlens 400. The annular region symmetrically surrounds the central region.The peripheral region symmetrically surrounds the annular region.

The annular region includes at least one power of critical point. Thecontact lens 400 can further include at least one light blocking ring450 disposed outside the central region. Preferably, the light blockingring 450 is disposed in the annular region. Therefore, the stray lightin the defocus area can be effectively eliminated, and the treatmenteffect of controlling myopia can be enhanced. Alternatively, theperipheral region can include at least one light blocking ring 450(i.e., the light blocking ring 450 is extended from the annular regionto the peripheral region, and the peripheral region only includes apartial of the light blocking ring 450). Therefore, the photophobiacaused by excessive light rays into the eye can be prevented while asufficient amount of entering light rays can be maintained to ensure thebrightness of the image.

In the 4th embodiment, the light blocking ring 450 is an evenlydistributed arrangement. Therefore, the interference of the stray lightcan be effectively reduced, and an optimal design according to the sizeof the pupil of the wearer can be provided. Accordingly, the photophobiacaused by excessive light rays into the eye can be prevented while asufficient amount of entering light rays can be maintained to ensure thebrightness of the image. The aforementioned “evenly distributedarrangement” refers to a design that is regular, discontinuous or fullyfilled. However, the present disclosure is not limited thereto.

In the 4th embodiment, a pattern of the light blocking ring 450 issolidly filled. However, in other embodiment, the pattern of the lightblocking ring can be discontinuously filled (as shown in FIG. 10) or adotted distribution (as shown in FIG. 11). Therefore, the photophobiacaused by excessive light rays into the eye can be prevented while asufficient amount of entering light rays can be maintained to ensure thebrightness of the image.

A color of the light blocking ring 450 can be selected from red, orange,yellow, green, blue, indigo, purple, black, white, silver or gold.Therefore, the amount of entering light rays can be enhanced or reducedby selecting a proper color. The light blocking ring 450 with a darkcolor can reduce the photophobia effect, and the light blocking ring 450with a light color can enhance the brightness of vision field.

In the 4th embodiment, when a minimum inner diameter of the lightblocking ring 450 is DBi, the following condition can be satisfied:DBi=7.04 mm. In other embodiment, when a minimum inner diameter of alight blocking ring is DBi, the following condition can be satisfied:3.5 mm≤DBi≤11.0 mm. Therefore, the photophobia caused by excessive lightrays into the eye can be prevented while a sufficient amount of enteringlight rays can be maintained to ensure the brightness of the image.Alternatively, the following condition can be satisfied: 3.5 mm≤DBi≤10mm. Alternatively, the following condition can be satisfied: 4.5mm≤DBi≤10 mm. Alternatively, the following condition can be satisfied:4.5 mm≤DBi≤9 mm. Alternatively, the following condition can besatisfied: 4.5 mm DBi 8.5 mm.

In the 4th embodiment, when a maximum outer diameter of the lightblocking ring 450 is DBo, the following condition can be satisfied:DBo=9.1 mm.

In other embodiment, when a maximum outer diameter of a light blockingring is DBo, the following condition can be satisfied: 6 mm≤DBo≤14 mm.Therefore, the photophobia caused by excessive light rays into the eyecan be prevented while a sufficient amount of entering light rays can bemaintained to ensure the brightness of the image. Alternatively, thefollowing condition can be satisfied: 6 mm≤DBo≤13 mm. Alternatively, thefollowing condition can be satisfied: 6.5 mm≤DBo≤12.5 mm. Alternatively,the following condition can be satisfied: 6.0 mm≤DBo≤11.0 mm.Alternatively, the following condition can be satisfied: 7.5 mm≤DBo≤12.5mm. Alternatively, the following condition can be satisfied: 8.5mm≤DBo≤11.5 mm.

In the 4th embodiment, when a maximum outer diameter of the contact lens400 is Do, the following condition can be satisfied: Do=14 mm. In otherembodiment, when a maximum outer diameter of a contact lens is Do, thefollowing condition can be satisfied: 13 mm≤Do≤15 mm. Therefore, thecontact lens can be manufactured with a proper size according topractical demands.

In the 4th embodiment, the peripheral region of the contact lens 400 caninclude at least one color pattern portion (not shown). Details of thecolor pattern portion can be the same as that of the contact lens 200 inFIG. 2A to FIG. 2C or the contact lens 300 in FIG. 3A to FIG. 3C, andare not repeated herein. Other details of the contact lens 400 can bethe same as that of the contact lens 100 in FIG. 1, and are not repeatedherein.

5th Embodiment

FIG. 5 is a schematic view showing a light blocking ring 550 of acontact lens 500 according to the 5th embodiment of the presentdisclosure. In FIG. 5, the contact lens 500 includes a central region(its reference numeral is omitted), an annular region (its referencenumeral is omitted) and a peripheral region (its reference numeral isomitted). The central region includes a central point O of the contactlens 500. The annular region symmetrically surrounds the central region.The peripheral region symmetrically surrounds the annular region.

The annular region includes at least one power of critical point. Thecontact lens 500 can further include at least one light blocking ring550 disposed outside the central region. Preferably, the light blockingring 550 is disposed in the annular region. Alternatively, theperipheral region can include at least one light blocking ring 550(i.e., the light blocking ring 550 is extended from the annular regionto the peripheral region, and the peripheral region only includes apartial of the light blocking ring 550).

In the 5th embodiment, the light blocking ring 550 is an evenlydistributed arrangement, and a pattern of the light blocking ring 550 issolidly filled. A color of the light blocking ring 550 can be selectedfrom red, orange, yellow, green, blue, indigo, purple, black, white,silver or gold.

In the 5th embodiment, when a minimum inner diameter of the lightblocking ring 550 is DBi (as shown in FIG. 4), a maximum outer diameterof the light blocking ring 550 is DBo (as shown in FIG. 4), and amaximum outer diameter of the contact lens 500 is Do, the followingconditions can be satisfied: DBi=4.02 mm; DBo=7.18 mm; and Do=14 mm.

In the 5th embodiment, the peripheral region of the contact lens 500 canfurther include at least one color pattern portion (not shown). Detailsof the color pattern portion can be the same as that of the contact lens200 in FIG. 2A to FIG. 2C or the contact lens 300 in FIG. 3A to FIG. 3C,and are not repeated herein. Other details of the contact lens 500 canbe the same as that of the contact lens 100 in FIG. 1, and are notrepeated herein.

6th Embodiment

FIG. 6 is a schematic view showing a light blocking ring 650 of acontact lens 600 according to the 6th embodiment of the presentdisclosure. In FIG. 6, the contact lens 600 includes a central region(its reference numeral is omitted), an annular region (its referencenumeral is omitted) and a peripheral region (its reference numeral isomitted). The central region includes a central point O of the contactlens 600. The annular region symmetrically surrounds the central region.The peripheral region symmetrically surrounds the annular region.

The annular region includes at least one power of critical point. Thecontact lens 600 can further include at least one light blocking ring650 disposed outside the central region. Preferably, the light blockingring 650 is disposed in the annular region. Alternatively, theperipheral region can include at least one light blocking ring 650(i.e., the light blocking ring 650 is extended from the annular regionto the peripheral region, and the peripheral region only includes apartial of the light blocking ring 650).

In the 6th embodiment, the light blocking ring 650 is an evenlydistributed arrangement, and a pattern of the light blocking ring 650 issolidly filled. A color of the light blocking ring 650 can be selectedfrom red, orange, yellow, green, blue, indigo, purple, black, white,silver or gold.

In the 6th embodiment, when a minimum inner diameter of the lightblocking ring 650 is DBi (as shown in FIG. 4), a maximum outer diameterof the light blocking ring 650 is DBo (as shown in FIG. 4), and amaximum outer diameter of the contact lens 600 is Do, the followingconditions can be satisfied: DBi=5.95 mm; DBo=12.07 mm; and Do=14 mm.

In the 6th embodiment, the peripheral region of the contact lens 600 canfurther include at least one color pattern portion (not shown). Detailsof the color pattern portion can be the same as that of the contact lens200 in FIG. 2A to FIG. 2C or the contact lens 300 in FIG. 3A to FIG. 3C,and are not repeated herein. Other details of the contact lens 600 canbe the same as that of the contact lens 100 in FIG. 1, and are notrepeated herein.

7th Embodiment

FIG. 7 is a schematic view showing a light blocking ring 750 of acontact lens 700 according to the 7th embodiment of the presentdisclosure. In FIG. 7, the contact lens 700 includes a central region(its reference numeral is omitted), an annular region (its referencenumeral is omitted) and a peripheral region (its reference numeral isomitted). The central region includes a central point O of the contactlens 700. The annular region symmetrically surrounds the central region.The peripheral region symmetrically surrounds the annular region. Theannular region includes at least one power of critical point. Thecontact lens 700 can further include at least one light blocking ring750 disposed outside the central region. Preferably, the light blockingring 750 is disposed in the annular region. Alternatively, theperipheral region can include at least one light blocking ring 750(i.e., the light blocking ring 750 is extended from the annular regionto the peripheral region, and the peripheral region only includes apartial of the light blocking ring 750).

In the 7th embodiment, the light blocking ring 750 is an evenlydistributed arrangement, and a pattern of the light blocking ring 750 issolidly filled. A color of the light blocking ring 750 can be selectedfrom red, orange, yellow, green, blue, indigo, purple, black, white,silver or gold.

In the 7th embodiment, when a minimum inner diameter of the lightblocking ring 750 is DBi (as shown in FIG. 4), a maximum outer diameterof the light blocking ring 750 is DBo (as shown in FIG. 4), and amaximum outer diameter of the contact lens 700 is Do, the followingconditions can be satisfied: DBi=7.91 mm; DBo=11.02 mm; and Do=14 mm.

In the 7th embodiment, the peripheral region of the contact lens 700 canfurther include at least one color pattern portion (not shown). Detailsof the color pattern portion can be the same as that of the contact lens200 in FIG. 2A to FIG. 2C or the contact lens 300 in FIG. 3A to FIG. 3C,and are not repeated herein. Other details of the contact lens 700 canbe the same as that of the contact lens 100 in FIG. 1, and are notrepeated herein.

8th Embodiment

FIG. 8 is a schematic view showing a light blocking ring 850 of acontact lens 800 according to the 8th embodiment of the presentdisclosure. In FIG. 8, the contact lens 800 includes a central region(its reference numeral is omitted), an annular region (its referencenumeral is omitted) and a peripheral region (its reference numeral isomitted). The central region includes a central point O of the contactlens 800. The annular region symmetrically surrounds the central region.The peripheral region symmetrically surrounds the annular region. Theannular region includes at least one power of critical point. Thecontact lens 800 can further include at least one light blocking ring850 disposed outside the central region. Preferably, the light blockingring 850 is disposed in the annular region. Alternatively, theperipheral region can include at least one light blocking ring 850(i.e., the light blocking ring 850 is extended from the annular regionto the peripheral region, and the peripheral region only includes apartial of the light blocking ring 850).

In the 8th embodiment, the light blocking ring 850 is an evenlydistributed arrangement, and a pattern of the light blocking ring 850 issolidly filled. A color of the light blocking ring 850 can be selectedfrom red, orange, yellow, green, blue, indigo, purple, black, white,silver or gold.

In the 8th embodiment, when a minimum inner diameter of the lightblocking ring 850 is DBi (as shown in FIG. 4), a maximum outer diameterof the light blocking ring 850 is DBo (as shown in FIG. 4), and amaximum outer diameter of the contact lens 800 is Do, the followingconditions can be satisfied: DBi=5.03 mm; DBo=8.1 mm; and Do=14 mm.

In the 8th embodiment, the peripheral region of the contact lens 800 canfurther include at least one color pattern portion (not shown). Detailsof the color pattern portion can be the same as that of the contact lens200 in FIG. 2A to FIG. 2C or the contact lens 300 in FIG. 3A to FIG. 3C,and are not repeated herein. Other details of the contact lens 800 canbe the same as that of the contact lens 100 in FIG. 1, and are notrepeated herein.

9th Embodiment

FIG. 9 is a schematic view showing a light blocking ring 950 of acontact lens 900 according to the 9th embodiment of the presentdisclosure. In FIG. 9, the contact lens 900 includes a central region(its reference numeral is omitted), an annular region (its referencenumeral is omitted) and a peripheral region (its reference numeral isomitted). The central region includes a central point O of the contactlens 900. The annular region symmetrically surrounds the central region.The peripheral region symmetrically surrounds the annular region. Theannular region includes at least one power of critical point. Thecontact lens 900 can further include at least one light blocking ring950 disposed outside the central region. Preferably, the light blockingring 950 is disposed in the annular region. Alternatively, theperipheral region can include at least one light blocking ring 950(i.e., the light blocking ring 950 is extended from the annular regionto the peripheral region, and the peripheral region only includes apartial of the light blocking ring 950).

In the 9th embodiment, the light blocking ring 950 is an evenlydistributed arrangement, and a pattern of the light blocking ring 950 issolidly filled. A color of the light blocking ring 950 can be selectedfrom red, orange, yellow, green, blue, indigo, purple, black, white,silver or gold.

In the 9th embodiment, when a minimum inner diameter of the lightblocking ring 950 is DBi (as shown in FIG. 4), a maximum outer diameterof the light blocking ring 950 is DBo (as shown in FIG. 4), and amaximum outer diameter of the contact lens 900 is Do, the followingconditions can be satisfied: DBi=7.58 mm; DBo=10.15 mm; and Do=14 mm.

In the 9th embodiment, the peripheral region of the contact lens 900 canfurther include at least one color pattern portion (not shown). Detailsof the color pattern portion can be the same as that of the contact lens200 in FIG. 2A to FIG. 2C or the contact lens 300 in FIG. 3A to FIG. 3C,and are not repeated herein. Other details of the contact lens 900 canbe the same as that of the contact lens 100 in FIG. 1, and are notrepeated herein.

10th Embodiment

FIG. 10 is a schematic view showing a light blocking ring 1050 of acontact lens 1000 according to the 10th embodiment of the presentdisclosure. In FIG. 10, the contact lens 1000 includes a central region(its reference numeral is omitted), an annular region (its referencenumeral is omitted) and a peripheral region (its reference numeral isomitted). The central region includes a central point O of the contactlens 1000. The annular region symmetrically surrounds the centralregion. The peripheral region symmetrically surrounds the annularregion. The annular region includes at least one power of criticalpoint. The contact lens 1000 can further include at least one lightblocking ring 1050 disposed outside the central region. Preferably, thelight blocking ring 1050 is disposed in the annular region.Alternatively, the peripheral region can include at least one lightblocking ring 1050 (i.e., the light blocking ring 1050 is extended fromthe annular region to the peripheral region, and the peripheral regiononly includes a partial of the light blocking ring 1050).

In the 10th embodiment, the light blocking ring 1050 is an evenlydistributed arrangement, and a pattern of the light blocking ring 1050is discontinuously filled. A color of the light blocking ring 1050 canbe selected from red, orange, yellow, green, blue, indigo, purple,black, white, silver or gold.

In the 10th embodiment, when a minimum inner diameter of the lightblocking ring 1050 is DBi (as shown in FIG. 4), a maximum outer diameterof the light blocking ring 1050 is DBo (as shown in FIG. 4), and amaximum outer diameter of the contact lens 1000 is Do, the followingconditions can be satisfied: DBi=6.79 mm; DBo=9.1 mm; and Do=14 mm.

In the 10th embodiment, the peripheral region of the contact lens 1000can further include at least one color pattern portion (not shown).Details of the color pattern portion can be the same as that of thecontact lens 200 in FIG. 2A to FIG. 2C or the contact lens 300 in FIG.3A to FIG. 3C, and are not repeated herein. Other details of the contactlens 1000 can be the same as that of the contact lens 100 in FIG. 1, andare not repeated herein.

11th Embodiment

FIG. 11 is a schematic view showing a light blocking ring 1150 of acontact lens 1100 according to the 11th embodiment of the presentdisclosure. In FIG. 11, the contact lens 1100 includes a central region(its reference numeral is omitted), an annular region (its referencenumeral is omitted) and a peripheral region (its reference numeral isomitted). The central region includes a central point O of the contactlens 1100. The annular region symmetrically surrounds the centralregion. The peripheral region symmetrically surrounds the annularregion. The annular region includes at least one power of criticalpoint. The contact lens 1100 can further include at least one lightblocking ring 1150 disposed outside the central region. Preferably, thelight blocking ring 1150 is disposed in the annular region.Alternatively, the peripheral region can include at least one lightblocking ring 1150 (i.e., the light blocking ring 1150 is extended fromthe annular region to the peripheral region, and the peripheral regiononly includes a partial of the light blocking ring 1150).

In the 11th embodiment, the light blocking ring 1150 is an evenlydistributed arrangement, and the light blocking ring 1150 is a dotteddistribution. A color of the light blocking ring 1150 can be selectedfrom red, orange, yellow, green, blue, indigo, purple, black, white,silver or gold.

In the 11th embodiment, when a minimum inner diameter of the lightblocking ring 1150 is DBi (as shown in FIG. 4), a maximum outer diameterof the light blocking ring 1150 is DBo (as shown in FIG. 4), and amaximum outer diameter of the contact lens 1100 is Do, the followingconditions can be satisfied: DBi=6.8 mm; DBo=9.1 mm; and Do=14 mm.

In the 11th embodiment, the peripheral region of the contact lens 1100can further include at least one color pattern portion (not shown).Details of the color pattern portion can be the same as that of thecontact lens 200 in FIG. 2A to FIG. 2C or the contact lens 300 in FIG.3A to FIG. 3C, and are not repeated herein. Other details of the contactlens 1100 can be the same as that of the contact lens 100 in FIG. 1, andare not repeated herein.

Each of the aforementioned features of the contact lens can be utilizedin numerous combinations, so as to achieve the correspondingfunctionality.

12th Embodiment

FIG. 27 is a schematic view showing a contact lens product 30 accordingto the 12th embodiment of the present disclosure. In FIG. 27, thecontact lens product 30 includes a contact lens 10 and an immersingsolution 20. The contact lens 10 is immersed in the immersing solution20. Details of the contact lens 10 can be the same as that of thecontact lens 100 in FIG. 1 to the contact lens 1100 in FIG. 11, and arenot repeated herein. The immersing solution 20 can be a commerciallyavailable solution for immersing and preserving contact lenses.

At least one of the contact lens 10 and the immersing solution 20 caninclude a cycloplegic agent. That is, only the contact lens 10 includethe cycloplegic agent, only the immersing solution 20 include thecycloplegic agent, or both of the contact lens 10 and the immersingsolution 20 include the cycloplegic agent.

Specifically, the composition for manufacturing the contact lens 10 canbe added with the cycloplegic agent, so that the contact lens 10manufactured thereby can include the cycloplegic agent. Therefore, thecycloplegic agent can be slowly released when the contact lens 10 isworn, which is favorable for deterring myopia. Moreover, the function ofcontrolling vision can be provided by simply wearing the contact lens10, which can simplify the treatment procedure. Alternatively, thecycloplegic agent can be added into the commercially available solutionfor immersing and preserving contact lenses, so that the immersingsolution 20 can include the cycloplegic agent. Therefore, an effect ofthe cycloplegic agent can be provided when the contact lens 10 is worn,which is favorable for providing an immediate effect and simplifying thetreatment procedure. When a weight percentage concentration of thecycloplegic agent in the contact lens 10 or the immersing solution 20 isConA, the following condition can be satisfied: 0%<ConA≤1%.Alternatively, the following condition can be satisfied: 0%<ConA≤0.5%.Alternatively, the following condition can be satisfied: 0%<ConA≤0.25%.Alternatively, the following condition can be satisfied: 0%<ConA≤0.1%.Alternatively, the following condition can be satisfied: 0%<ConA≤0.05%.Alternatively, the following condition can be satisfied: 0%<ConA≤0.01%.

According to the above description of the present disclosure, thefollowing specific examples are provided for further explanation.

1st Example

In the 1st example, the contact lens includes a central region, anannular region and a peripheral region. The central region includes acentral point of the contact lens. The annular region symmetricallysurrounds the central region. The peripheral region symmetricallysurrounds the annular region. The peripheral region can include at leastone color pattern portion. At least one light blocking ring can bedisposed outside the central region. The structure of the contact lensof the 1st example can refer to FIG. 1. The color pattern portion canrefer to FIG. 2A to FIG. 3C. The light blocking ring can refer to FIG. 4to FIG. 11. The contact lens of the 1st example can include acycloplegic agent according to practical demands.

Please refer to Table 1 and FIG. 12 simultaneously. The radius and thecorrespondent diopter of the contact lens of the 1st example are listedin Table 1. FIG. 12 shows a relationship between the radius and thediopter of the contact lens of the 1st example (the negative radius hasan opposite direction with the positive radius).

TABLE 1 1st example radius (mm) diopter (D) −4.0 14.00 −3.8 9.83 −3.66.90 −3.4 4.84 −3.2 3.40 −3.0 2.38 −2.8 1.67 −2.6 1.17 −2.4 0.82 −2.20.58 −2.0 0.41 −1.8 0.28 −1.6 0.20 −1.4 0 −1.2 0 −1.0 0 −0.8 0 −0.6 0−0.4 0 −0.2 0 0.0 0 0.2 0 0.4 0 0.6 0 0.8 0 1.0 0 1.2 0 1.4 0 1.6 0.201.8 0.28 2.0 0.41 2.2 0.58 2.4 0.82 2.6 1.17 2.8 1.67 3.0 2.38 3.2 3.403.4 4.84 3.6 6.90 3.8 9.83 4.0 14.00 Note: the region with an absolutevalue of the radius smaller than or equal to 1.4 mm is the centralregion, and the region with the absolute value of the radius greaterthan 1.4 mm is the annular region.

In the contact lens according to the 1st example, a diopter of thecentral region is POWC, a maximum diopter of the annular region isPPmax, a maximum diameter of the central region is DiC, a maximumdiameter of the annular region is DiP, a high power of critical point ofthe annular region is PPH, a medium power of critical point of theannular region is PPM, a low power of critical point of the annularregion is PPL, a power of a first critical point is PCP1, a power of asecond critical point is PCP2, a power of a third critical point isPCP3, a power of a fourth critical point is PCP4, a power of a fifthcritical point is PCP5, and a power of a sixth critical point is PCP6.The values of the aforementioned parameters of the 1st example and thevalues of relevant conditions thereof are listed in Table 2.

TABLE 2 1st example PowC (D) 0.00 PPmax (D 14.00 |PPmax − POWC| (D)14.00 DiC (mm) 2.8 DiP (mm) 8.0 PPH (D) — PPM (D) — PPL (D) —|PPmax/PPH| — |PPmax/PPL| — PCP1 (D) — PCP2 (D) — PCP3 (D) — PCP4 (D) —PCP5 (D) — PCP6 (D) — PCP1 − POWC (D) — PCP2 − PCP1 (D) — PCP3 − PCP2(D) — PCP4 − PCP3 (D) — PCP5 − PCP4 (D) — PCP6 − PCP5 (D) — (PCP2 −PCP1)/(PCP1 − POWC) —

2nd Example

In the 2nd example, the contact lens includes a central region, anannular region and a peripheral region. The central region includes acentral point of the contact lens. The annular region symmetricallysurrounds the central region. The peripheral region symmetricallysurrounds the annular region. The peripheral region can include at leastone color pattern portion. At least one light blocking ring can bedisposed outside the central region. The structure of the contact lensof the 2nd example can refer to FIG. 1. The color pattern portion canrefer to FIG. 2A to FIG. 3C. The light blocking ring can refer to FIG. 4to FIG. 11. The annular region includes a high critical point. Thecontact lens of the 2nd example can include a cycloplegic agentaccording to practical demands.

Please refer to Table 3 and FIG. 13 simultaneously. The radius and thecorrespondent diopter of the contact lens of the 2nd example are listedin Table 3. FIG. 13 shows a relationship between the radius and thediopter of the contact lens of the 2nd example (the negative radius hasan opposite direction with the positive radius).

TABLE 3 2nd example radius (mm) diopter (D) −4.0 −1.00 −3.8 1.00 −3.63.00 −3.4 5.00 −3.2 7.00 −3.0 9.00 −2.8 11.00 −2.6 12.00 −2.4 11.00 −2.28.19 −2.0 5.38 −1.8 2.56 −1.6 −0.25 −1.4 −1.50 −1.2 −3.00 −1.0 −3.00−0.8 −3.00 −0.6 −3.00 −0.4 −3.00 −0.2 −3.00 0.0 −3.00 0.2 −3.00 0.4−3.00 0.6 −3.00 0.8 −3.00 1.0 −3.00 1.2 −3.00 1.4 −1.50 1.6 −0.25 1.82.56 2.0 5.38 2.2 8.19 2.4 11.00 2.6 12.00 2.8 11.00 3.0 9.00 3.2 7.003.4 5.00 3.6 3.00 3.8 1.00 4.0 −1.00 Note: the region with an absolutevalue of the radius smaller than or equal to 1.2 mm is the centralregion, and the region with the absolute value of the radius greaterthan 1.2 mm is the annular region. Note: the annular region includes, inorder from the central point to a periphery, a high power of criticalpoint of 12.00 D.

In the contact lens according to the 2nd example, the values of theparameters of POWC, PPmax, DiC, DiP, PPH, PPM, PPL, PCP1, PCP2, PCP3,PCP4, PCP5 and PCP6 and the values of relevant conditions thereof arelisted in Table 4, and definitions of the aforementioned parameters canrefer to the 1st example.

TABLE 4 2nd example PowC (D) −3.00 PPmax (D 12.00 |PPmax − POWC| (D)15.00 DiC (mm) 2.4 DiP (mm) 8.0 PPH (D) 12.00 PPM (D) — PPL (D) —|PPmax/PPH|  1.00 |PPmax/PPL| — PCP1 (D) 12.00 PCP2 (D) — PCP3 (D) —PCP4 (D) — PCP5 (D) — PCP6 (D) — PCP1 − POWC (D) 15.00 PCP2 − PCP1 (D) —PCP3 − PCP2 (D) — PCP4 − PCP3 (D) — PCP5 − PCP4 (D) — PCP6 − PCP5 (D) —(PCP2 − PCP1)/(PCP1 − POWC) —

In the contact lens according to the 2nd example, a first critical pointis CP1, a second critical point is CP2, a third critical point is CP3, afourth critical point is CP4, a fifth critical point is CP5, and a sixthcritical point is CP6. The classes of the aforementioned critical pointsof the 2nd example are listed in Table 5.

TABLE 5 2nd example CP1 CH CP2 — CP3 — CP4 — CP5 — CP6 —

3rd Example

In the 3rd example, the contact lens includes a central region, anannular region and a peripheral region. The central region includes acentral point of the contact lens. The annular region symmetricallysurrounds the central region. The peripheral region symmetricallysurrounds the annular region. The peripheral region can include at leastone color pattern portion. At least one light blocking ring can bedisposed outside the central region. The structure of the contact lensof the 3rd example can refer to FIG. 1. The color pattern portion canrefer to FIG. 2A to FIG. 3C. The light blocking ring can refer to FIG. 4to FIG. 11. The annular region includes a low critical point. Thecontact lens of the 3rd example can include a cycloplegic agentaccording to practical demands.

4th Example

In the 4th example, the contact lens includes a central region, anannular region and a peripheral region. The central region includes acentral point of the contact lens. The annular region symmetricallysurrounds the central region. The peripheral region symmetricallysurrounds the annular region. The peripheral region can include at leastone color pattern portion. At least one light blocking ring can bedisposed outside the central region. The structure of the contact lensof the 4th example can refer to FIG. 1. The color pattern portion canrefer to FIG. 2A to FIG. 3C. The light blocking ring can refer to FIG. 4to FIG. 11. The annular region includes a high critical point and a lowcritical point. The contact lens of the 4th example can include acycloplegic agent according to practical demands.

5th Example

In the 5th example, the contact lens includes a central region, anannular region and a peripheral region. The central region includes acentral point of the contact lens. The annular region symmetricallysurrounds the central region. The peripheral region symmetricallysurrounds the annular region. The peripheral region can include at leastone color pattern portion. At least one light blocking ring can bedisposed outside the central region. The structure of the contact lensof the 5th example can refer to FIG. 1. The color pattern portion canrefer to FIG. 2A to FIG. 3C. The light blocking ring can refer to FIG. 4to FIG. 11. The annular region includes two high critical points. Thecontact lens of the 5th example can include a cycloplegic agentaccording to practical demands.

Please refer to Table 6 and FIG. 14 simultaneously. The radius and thecorrespondent diopter of the contact lens of the 5th example are listedin Table 6. FIG. 14 shows a relationship between the radius and thediopter of the contact lens of the 5th example (the negative radius hasan opposite direction with the positive radius).

TABLE 6 5th example radius (mm) diopter (D) −4.0 0.25 −3.8 −2.00 −3.60.25 −3.4 −2.00 −3.2 0.25 −3.0 −2.00 −2.8 0.25 −2.6 −2.00 −2.4 0.25 −2.2−2.00 −2.0 0.25 −1.8 −2.00 −1.6 0.25 −1.4 −2.00 −1.2 −4.00 −1.0 −4.00−0.8 −4.00 −0.6 −4.00 −0.4 −4.00 −0.2 −4.00 0.0 −4.00 0.2 −4.00 0.4−4.00 0.6 −4.00 0.8 −4.00 1.0 −4.00 1.2 −4.00 1.4 −2.00 1.6 0.25 1.8−2.00 2.0 0.25 2.2 −2.00 2.4 0.25 2.6 −2.00 2.8 0.25 3.0 −2.00 3.2 0.253.4 −2.00 3.6 0.25 3.8 −2.00 4.0 0.25 Note: the region with an absolutevalue of the radius smaller than or equal to 1.2 mm is the centralregion, and the region with the absolute value of the radius greaterthan 1.2 mm is the annular region. Note: the annular region includes, inorder from the central point to a periphery, a high power of criticalpoint of 0.25 D and a high power of critical point of −2.00 D.

In the contact lens according to the 5th example, the values of theparameters of POWC, PPmax, DiC, DiP, PPH, PPM, PPL, PCP1, PCP2, PCP3,PCP4, POPS and PCP6 and the values of relevant conditions thereof arelisted in Table 7, and definitions of the aforementioned parameters canrefer to the 1st example.

TABLE 7 5th example PowC (D) −4.00 PPmax (D  0.25 |PPmax − POWC| (D) 4.25 DiC (mm) 2.4 DiP (mm) 8.0 PPH (D) 0.25, −2.00 PPM (D) — PPL (D) —|PPmax/PPH| 1.00, −0.125 |PPmax/PPL| — PCP1 (D)  0.25 PCP2 (D) −2.00PCP3 (D) — PCP4 (D) — PCP5 (D) — PCP6 (D) — PCP1 − POWC (D)  4.25 PCP2 −PCP1 (D) −2.25 PCP3 − PCP2 (D) — PCP4 − PCP3 (D) — PCP5 − PCP4 (D) —PCP6 − PCP5 (D) — (PCP2 − PCP1)/(PCP1 − POWC) −0.53

In the contact lens according to the 5th example, a first critical pointis CP1, a second critical point is CP2, a third critical point is CP3, afourth critical point is CP4, a fifth critical point is CP5, and a sixthcritical point is CP6. The classes of the aforementioned critical pointsof the 5th example are listed in Table 8.

TABLE 8 5th example CP1 CH CP2 CH CP3 — CP4 — CP5 — CP6 —

6th Example

In the 6th example, the contact lens includes a central region, anannular region and a peripheral region. The central region includes acentral point O of the contact lens. The annular region symmetricallysurrounds the central region. The peripheral region symmetricallysurrounds the annular region. The peripheral region can include at leastone color pattern portion. At least one light blocking ring can bedisposed outside the central region. The structure of the contact lensof the 6th example can refer to FIG. 1. The color pattern portion canrefer to FIG. 2A to FIG. 3C. The light blocking ring can refer to FIG. 4to FIG. 11. The annular region includes two low critical points. Thecontact lens of the 6th example can include a cycloplegic agentaccording to practical demands.

Please refer to Table 9 and FIG. 15 simultaneously. The radius and thecorrespondent diopter of the contact lens of the 6th example are listedin Table 9. FIG. 15 shows a relationship between the radius and thediopter of the contact lens of the 6th example (the negative radius hasan opposite direction with the positive radius).

TABLE 9 6th example radius (mm) diopter (D) −4.0 7.00 −3.8 6.10 −3.65.20 −3.4 4.30 −3.2 3.40 −3.0 2.50 −2.8 1.60 −2.6 0.70 −2.4 −0.20 −2.2−1.10 −2.0 −2.00 −1.8 −1.50 −1.6 −2.00 −1.4 −1.00 −1.2 −1.00 −1.0 −1.00−0.8 −1.00 −0.6 −1.00 −0.4 −1.00 −0.2 −1.00 0.0 −1.00 0.2 −1.00 0.4−1.00 0.6 −1.00 0.8 −1.00 1.0 −1.00 1.2 −1.00 1.4 −1.00 1.6 −2.00 1.8−1.50 2.0 −2.00 2.2 −1.10 2.4 −0.20 2.6 0.70 2.8 1.60 3.0 2.50 3.2 3.403.4 4.30 3.6 5.20 3.8 6.10 4.0 7.00 Note: the region with an absolutevalue of the radius smaller than or equal to 1.4 mm is the centralregion, and the region with the absolute value of the radius greaterthan 1.4 mm is the annular region. Note: the annular region includes, inorder from the central point to a periphery, a low power of criticalpoint of −2.00 D and a low power of critical point of −1.50 D.

In the contact lens according to the 6th example, the values of theparameters of POWC, PPmax, DiC, DiP, PPH, PPM, PPL, PCP1, PCP2, PCP3,PCP4, PCP5 and PCP6 and the values of relevant conditions thereof arelisted in Table 10, and definitions of the aforementioned parameters canrefer to the 1st example.

TABLE 10 6th example PowC (D) −1.00 PPmax (D  7.00 |PPmax − POWC| (D) 8.00 DiC (mm) 2.8 DiP (mm) 8.0 PPH (D) — PPM (D) — PPL (D) −2.00, −1.50|PPmax/PPH| — |PPmax/PPL| −3.50, −4.67 PCP1 (D) −2.00 PCP2 (D) −1.50PCP3 (D) — PCP4 (D) — PCP5 (D) — PCP6 (D) — PCP1 − POWC (D) −1.00 PCP2 −PCP1 (D)  0.50 PCP3 − PCP2 (D) — PCP4 − PCP3 (D) — PCP5 − PCP4 (D) —PCP6 − PCP5 (D) — (PCP2 − PCP1)/(PCP1 − POWC) −0.50

In the contact lens according to the 6th example, a first critical pointis CP1, a second critical point is CP2, a third critical point is CP3, afourth critical point is CP4, a fifth critical point is CP5, and a sixthcritical point is CP6. The classes of the aforementioned critical pointsof the 6th example are listed in Table 11.

TABLE 11 6th example CP1 CL CP2 CL CP3 — CP4 — CP5 — CP6 —

7th Example

In the 7th example, the contact lens includes a central region, anannular region and a peripheral region. The central region includes acentral point O of the contact lens. The annular region symmetricallysurrounds the central region. The peripheral region symmetricallysurrounds the annular region. The peripheral region can include at leastone color pattern portion. At least one light blocking ring can bedisposed outside the central region. The structure of the contact lensof the 7th example can refer to FIG. 1. The color pattern portion canrefer to FIG. 2A to FIG. 3C. The light blocking ring can refer to FIG. 4to FIG. 11. The annular region includes two high critical points, amedium critical point and a low critical point. The contact lens of the7th example can include a cycloplegic agent according to practicaldemands.

Please refer to Table 12 and FIG. 16 simultaneously. The radius and thecorrespondent diopter of the contact lens of the 7th example are listedin Table 12. FIG. 16 shows a relationship between the radius and thediopter of the contact lens of the 7th example (the negative radius hasan opposite direction with the positive radius).

TABLE 12 7th example radius (mm) diopter (D) −4.0 1.00 −3.8 0.00 −3.6−1.00 −3.4 0.20 −3.2 1.40 −3.0 2.60 −2.8 3.80 −2.6 5.00 −2.4 3.33 −2.21.67 −2.0 0 −1.8 3.00 −1.6 0.55 −1.4 0.10 −1.2 0 −1.0 0 −0.8 0 −0.6 0−0.4 0 −0.2 0 0.0 0 0.2 0 0.4 0 0.6 0 0.8 0 1.0 0 1.2 0 1.4 0.10 1.60.55 1.8 3.00 2.0 0 2.2 1.67 2.4 3.33 2.6 5.00 2.8 3.80 3.0 2.60 3.21.40 3.4 0.20 3.6 −1.00 3.8 0.00 4.0 1.00 Note: the region with anabsolute value of the radius smaller than or equal to 1.2 mm is thecentral region, and the region with the absolute value of the radiusgreater than 1.2 mm is the annular region. Note: the annular regionincludes, in order from the central point to a periphery, a high powerof critical point of 3.00 D, a medium power of critical point of 0 D, ahigh power of critical point of 5.00 D, and a low power of criticalpoint of −1.00 D.

In the contact lens according to the 7th example, the values of theparameters of POWC, PPmax, DiC, DiP, PPH, PPM, PPL, PCP1, PCP2, PCP3,PCP4, POPS and PCP6 and the values of relevant conditions thereof arelisted in Table 13, and definitions of the aforementioned parameters canrefer to the 1st example.

TABLE 13 7th example PowC (D) 0.00 PPmax (D 5.00 |PPmax − POWC| (D) 5.00DiC (mm) 2.4 DiP (mm) 8.0 PPH (D) 3.00, 5.00 PPM (D) 0 PPL (D) −1.00|PPmax/PPH| 1.67, 1.00 |PPmax/PPL| −5.00 PCP1 (D) 3.00 PCP2 (D) 0.00PCP3 (D) 5.00 PCP4 (D) −1.00 PCP5 (D) — PCP6 (D) — PCP1 − POWC (D) 3.00PCP2 − PCP1 (D) −3.00 PCP3 − PCP2 (D) 5.00 PCP4 − PCP3 (D) −6.00 PCP5 −PCP4 (D) — PCP6 − PCP5 (D) — (PCP2 − PCP1)/(PCP1 − POWC) −1.00

In the contact lens according to the 7th example, a first critical pointis CP1, a second critical point is CP2, a third critical point is CP3, afourth critical point is CP4, a fifth critical point is CP5, and a sixthcritical point is CP6. The classes of the aforementioned critical pointsof the 7th example are listed in Table 14.

TABLE 14 7th example CP1 CH CP2 CM CP3 CH CP4 CL CP5 — CP6 —

8th Example

In the 8th example, the contact lens includes a central region, anannular region and a peripheral region. The central region includes acentral point O of the contact lens. The annular region symmetricallysurrounds the central region. The peripheral region symmetricallysurrounds the annular region. The peripheral region can include at leastone color pattern portion. At least one light blocking ring can bedisposed outside the central region. The structure of the contact lensof the 8th example can refer to FIG. 1. The color pattern portion canrefer to FIG. 2A to FIG. 3C. The light blocking ring can refer to FIG. 4to FIG. 11. The annular region includes a high critical point and twolow critical points. The contact lens of the 8th example can include acycloplegic agent according to practical demands.

9th Example

In the 9th example, the contact lens includes a central region, anannular region and a peripheral region. The central region includes acentral point O of the contact lens. The annular region symmetricallysurrounds the central region. The peripheral region symmetricallysurrounds the annular region. The peripheral region can include at leastone color pattern portion. At least one light blocking ring can bedisposed outside the central region. The structure of the contact lensof the 9th example can refer to FIG. 1. The color pattern portion canrefer to FIG. 2A to FIG. 3C. The light blocking ring can refer to FIG. 4to FIG. 11. The annular region includes two high critical points, amedium critical point and two low critical points. The contact lens ofthe 9th example can include a cycloplegic agent according to practicaldemands.

Please refer to Table 15 and FIG. 17 simultaneously. The radius and thecorrespondent diopter of the contact lens of the 9th example are listedin Table 15. FIG. 17 shows a relationship between the radius and thediopter of the contact lens of the 9th example (the negative radius hasan opposite direction with the positive radius).

TABLE 15 9th example radius (mm) diopter (D) −4.0 4.00 −3.8 3.67 −3.63.33 −3.4 3.00 −3.2 3.33 −3.0 3.67 −2.8 4.00 −2.6 0.83 −2.4 −2.33 −2.2−5.50 −2.0 −5.25 −1.8 −5.00 −1.6 −5.50 −1.4 −6.00 −1.2 −5.50 −1.0 −5.00−0.8 −5.00 −0.6 −5.00 −0.4 −5.00 −0.2 −5.00 0.0 −5.00 0.2 −5.00 0.4−5.00 0.6 −5.00 0.8 −5.00 1.0 −5.00 1.2 −5.50 1.4 −6.00 1.6 −5.50 1.8−5.00 2.0 −5.25 2.2 −5.50 2.4 −2.33 2.6 0.83 2.8 4.00 3.0 3.67 3.2 3.333.4 3.00 3.6 3.33 3.8 3.67 4.0 4.00 Note: the region with an absolutevalue of the radius smaller than or equal to 1.0 mm is the centralregion, and the region with the absolute value of the radius greaterthan 1.0 mm is the annular region. Note: the annular region includes, inorder from the central point to a periphery, a low power of criticalpoint of −6.00 D, a medium power of critical point of −5.00 D, a lowpower of critical point of −5.50 D, a high power of critical point of4.00 D, and a high power of critical point of 3.00 D.

In the contact lens according to the 9th example, the values of theparameters of POWC, PPmax, DiC, DiP, PPH, PPM, PPL, PCP1, PCP2, PCP3,PCP4, POPS and PCP6 and the values of relevant conditions thereof arelisted in Table 16, and definitions of the aforementioned parameters canrefer to the 1st example.

TABLE 16 9th example PowC (D) −5.00 PPmax (D 4.00 |PPmax − POWC| (D)9.00 DiC (mm) 2 DiP (mm) 8.0 PPH (D) 4.00, 3.00 PPM (D) −5.00 PPL (D)−6.00, −5.50 |PPmax/PPH| 1.00, 1.33 |PPmax/PPL| −0.67, −0.73 PCP1 (D)−6.00 PCP2 (D) −5.00 PCP3 (D) −5.50 PCP4 (D) 4.00 PCP5 (D) 3.00 PCP6 (D)— PCP1 − POWC (D) −1.00 PCP2 − PCP1 (D) 1.00 PCP3 − PCP2 (D) −0.50 PCP4− PCP3 (D) 9.50 PCP5 − PCP4 (D) −1.00 PCP6 − PCP5 (D) — (PCP2 −PCP1)/(PCP1 − POWC) −1.00

In the contact lens according to the 9th example, a first critical pointis CP1, a second critical point is CP2, a third critical point is CP3, afourth critical point is CP4, a fifth critical point is CP5, and a sixthcritical point is CP6. The classes of the aforementioned critical pointsof the 9th example are listed in Table 17.

TABLE 17 9th example CP1 CL CP2 CM CP3 CL CP4 CH CP5 CH CP6 —

10th Example

In the 10th example, the contact lens includes a central region, anannular region and a peripheral region. The central region includes acentral point O of the contact lens. The annular region symmetricallysurrounds the central region. The peripheral region symmetricallysurrounds the annular region. The peripheral region can include at leastone color pattern portion. At least one light blocking ring can bedisposed outside the central region. The structure of the contact lensof the 10th example can refer to FIG. 1. The color pattern portion canrefer to FIG. 2A to FIG. 3C. The light blocking ring can refer to FIG. 4to FIG. 11. The annular region includes three high critical points. Thecontact lens of the 10th example can include a cycloplegic agentaccording to practical demands.

Please refer to Table 18 and FIG. 18 simultaneously. The radius and thecorrespondent diopter of the contact lens of the 10th example are listedin Table 18. FIG. 18 shows a relationship between the radius and thediopter of the contact lens of the 10th example (the negative radius hasan opposite direction with the positive radius).

TABLE 18 10th example radius (mm) diopter (D) −4.0 9.00 −3.8 11.00 −3.69.00 −3.4 4.95 −3.2 2.22 −3.0 1.00 −2.8 3.00 −2.6 5.00 −2.4 2.60 −2.20.20 −2.0 −2.20 −1.8 −4.60 −1.6 −7.00 −1.4 −7.00 −1.2 −7.00 −1.0 −7.00−0.8 −7.00 −0.6 −7.00 −0.4 −7.00 −0.2 −7.00 0.0 −7.00 0.2 −7.00 0.4−7.00 0.6 −7.00 0.8 −7.00 1.0 −7.00 1.2 −7.00 1.4 −7.00 1.6 −7.00 1.8−4.60 2.0 −2.20 2.2 0.20 2.4 2.60 2.6 5.00 2.8 3.00 3.0 1.00 3.2 2.223.4 4.95 3.6 9.00 3.8 11.00 4.0 9.00 Note: the region with an absolutevalue of the radius smaller than or equal to 1.6 mm is the centralregion, and the region with the absolute value of the radius greaterthan 1.6 mm is the annular region. Note: the annular region includes, inorder from the central point to a periphery, a high power of criticalpoint of 5.00 D, a high power of critical point of 1.00 D, and a highpower of critical point of 11.00 D.

In the contact lens according to the 10th example, the values of theparameters of POWC, PPmax, DiC, DiP, PPH, PPM, PPL, PCP1, PCP2, PCP3,PCP4, POPS and PCP6 and the values of relevant conditions thereof arelisted in Table 19, and definitions of the aforementioned parameters canrefer to the 1st example.

TABLE 19 10th example PowC (D) −7.00 PPmax (D 11.00 |PPmax − POWC| (D)18.00 DiC (mm) 3.2 DiP (mm) 8.0 PPH (D) 5.00, 1.00, 11.00 PPM (D) — PPL(D) — |PPmax/PPH| 2.20, 11.00, 1.00 |PPmax/PPL| — PCP1 (D) 5.00 PCP2 (D)1.00 PCP3 (D) 11.00 PCP4 (D) — PCP5 (D) — PCP6 (D) — PCP1 − POWC (D)12.00 PCP2 − PCP1 (D) −4.00 PCP3 − PCP2 (D) 10.00 PCP4 − PCP3 (D) — PCP5− PCP4 (D) — PCP6 − PCP5 (D) — (PCP2 − PCP1)/(PCP1 − POWC) 0.33

In the contact lens according to the 10th example, a first criticalpoint is CP1, a second critical point is CP2, a third critical point isCP3, a fourth critical point is CP4, a fifth critical point is CP5, anda sixth critical point is CP6. The classes of the aforementionedcritical points of the 10th example are listed in Table 20.

TABLE 20 10th example CP1 CH CP2 CH CP3 CH CP4 — CP5 — CP6 —

11th Example

In the 11th example, the contact lens includes a central region, anannular region and a peripheral region. The central region includes acentral point O of the contact lens. The annular region symmetricallysurrounds the central region. The peripheral region symmetricallysurrounds the annular region. The peripheral region can include at leastone color pattern portion. At least one light blocking ring can bedisposed outside the central region. The structure of the contact lensof the 11th example can refer to FIG. 1. The color pattern portion canrefer to FIG. 2A to FIG. 3C. The light blocking ring can refer to FIG. 4to FIG. 11. The annular region includes a medium critical point andthree low critical points. The contact lens of the 11th example caninclude a cycloplegic agent according to practical demands.

12th Example

In the 12th example, the contact lens includes a central region, anannular region and a peripheral region. The central region includes acentral point O of the contact lens. The annular region symmetricallysurrounds the central region. The peripheral region symmetricallysurrounds the annular region. The peripheral region can include at leastone color pattern portion. At least one light blocking ring can bedisposed outside the central region. The structure of the contact lensof the 12th example can refer to FIG. 1. The color pattern portion canrefer to FIG. 2A to FIG. 3C. The light blocking ring can refer to FIG. 4to FIG. 11. The annular region includes three high critical points and alow critical point. The contact lens of the 12th example can include acycloplegic agent according to practical demands.

Please refer to Table 21 and FIG. 19 simultaneously. The radius and thecorrespondent diopter of the contact lens of the 12th example are listedin Table 21. FIG. 19 shows a relationship between the radius and thediopter of the contact lens of the 12th example (the negative radius hasan opposite direction with the positive radius).

TABLE 21 12th example radius (mm) diopter (D) −4.0 8.00 −3.8 9.00 −3.610.00 −3.4 9.00 −3.2 8.00 −3.0 7.00 −2.8 6.00 −2.6 6.50 −2.4 7.00 −2.27.50 −2.0 8.00 −1.8 5.90 −1.6 3.80 −1.4 1.70 −1.2 −0.40 −1.0 −2.50 −0.8−2.00 −0.6 −2.00 −0.4 −2.00 −0.2 −2.00 0.0 −2.00 0.2 −2.00 0.4 −2.00 0.6−2.00 0.8 −2.00 1.0 −2.50 1.2 −0.40 1.4 1.70 1.6 3.80 1.8 5.90 2.0 8.002.2 7.50 2.4 7.00 2.6 6.50 2.8 6.00 3.0 7.00 3.2 8.00 3.4 9.00 3.6 10.003.8 9.00 4.0 8.00 Note: the region with an absolute value of the radiussmaller than or equal to 0.8 mm is the central region, and the regionwith the absolute value of the radius greater than 0.8 mm is the annularregion. Note: the annular region includes, in order from the centralpoint to a periphery, a low power of critical point of −2.50 D, a highpower of critical point of 8.00 D, a high power of critical point of6.00 D, and a high power of critical point of 10.00 D.

In the contact lens according to the 12th example, the values of theparameters of POWC, PPmax, DiC, DiP, PPH, PPM, PPL, PCP1, PCP2, PCP3,PCP4, POPS and PCP6 and the values of relevant conditions thereof arelisted in Table 22, and definitions of the aforementioned parameters canrefer to the 1st example.

TABLE 22 12th example PowC (D) −2.00 PPmax (D 10.00 |PPmax − POWC| (D)12.00 DiC (mm) 1.6 DiP (mm) 8.0 PPH (D) 8.00, 6.00, 10.00 PPM (D) — PPL(D) −2.50 |PPmax/PPH| 1.25, 1.67, 1.00  |PPmax/PPL| −4.00 PCP1 (D) −2.50PCP2 (D)  8.00 PCP3 (D)  6.00 PCP4 (D) 10.00 PCP5 (D) — PCP6 (D) — PCP1− POWC (D) −0.50 PCP2 − PCP1 (D) 10.50 PCP3 − PCP2 (D) −2.00 PCP4 − PCP3(D)  4.00 PCP5 − PCP4 (D) — PCP6 − PCP5 (D) — (PCP2 − PCP1)/(PCP1 −POWC) −21.00 

In the contact lens according to the 12th example, a first criticalpoint is CP1, a second critical point is CP2, a third critical point isCP3, a fourth critical point is CP4, a fifth critical point is CP5, anda sixth critical point is CP6. The classes of the aforementionedcritical points of the 12th example are listed in Table 23.

TABLE 23 12th example CP1 CL CP2 CH CP3 CH CP4 CH CP5 — CP6 —

13th Example

In the 13th example, the contact lens includes a central region, anannular region and a peripheral region. The central region includes acentral point O of the contact lens. The annular region symmetricallysurrounds the central region. The peripheral region symmetricallysurrounds the annular region. The peripheral region can include at leastone color pattern portion. At least one light blocking ring can bedisposed outside the central region. The structure of the contact lensof the 13th example can refer to FIG. 1. The color pattern portion canrefer to FIG. 2A to FIG. 3C. The light blocking ring can refer to FIG. 4to FIG. 11. The annular region includes a high critical point and threelow critical points. The contact lens of the 13th example can include acycloplegic agent according to practical demands.

14th Example

In the 14th example, the contact lens includes a central region, anannular region and a peripheral region. The central region includes acentral point O of the contact lens. The annular region symmetricallysurrounds the central region. The peripheral region symmetricallysurrounds the annular region. The peripheral region can include at leastone color pattern portion. At least one light blocking ring can bedisposed outside the central region. The structure of the contact lensof the 14th example can refer to FIG. 1. The color pattern portion canrefer to FIG. 2A to FIG. 3C. The light blocking ring can refer to FIG. 4to FIG. 11. The annular region includes three high critical points, amedium critical point and two low critical points. The contact lens ofthe 14th example can include a cycloplegic agent according to practicaldemands.

15th Example

In the 15th example, the contact lens includes a central region, anannular region and a peripheral region. The central region includes acentral point O of the contact lens. The annular region symmetricallysurrounds the central region. The peripheral region symmetricallysurrounds the annular region. The peripheral region can include at leastone color pattern portion. At least one light blocking ring can bedisposed outside the central region. The structure of the contact lensof the 15th example can refer to FIG. 1. The color pattern portion canrefer to FIG. 2A to FIG. 3C. The light blocking ring can refer to FIG. 4to FIG. 11. The annular region includes two high critical points andthree low critical points. The contact lens of the 15th example caninclude a cycloplegic agent according to practical demands.

16th Example

In the 16th example, the contact lens includes a central region, anannular region and a peripheral region. The central region includes acentral point O of the contact lens. The annular region symmetricallysurrounds the central region. The peripheral region symmetricallysurrounds the annular region. The peripheral region can include at leastone color pattern portion. At least one light blocking ring can bedisposed outside the central region. The structure of the contact lensof the 16th example can refer to FIG. 1. The color pattern portion canrefer to FIG. 2A to FIG. 3C. The light blocking ring can refer to FIG. 4to FIG. 11. The annular region includes three high critical points andthree low critical points. The contact lens of the 16th example caninclude a cycloplegic agent according to practical demands.

Please refer to Table 24 and FIG. 20 simultaneously. The radius and thecorrespondent diopter of the contact lens of the 16th example are listedin Table 24. FIG. 20 shows a relationship between the radius and thediopter of the contact lens of the 16th example (the negative radius hasan opposite direction with the positive radius).

TABLE 24 16th example radius (mm) diopter (D) −4.0 2.00 −3.8 3.00 −3.64.00 −3.4 −1.00 −3.2 −7.50 −3.0 −4.00 −2.8 −7.00 −2.6 −4.50 −2.4 −5.50−2.2 −6.50 −2.0 −6.00 −1.8 −6.00 −1.6 −6.00 −1.4 −6.00 −1.2 −6.00 −1.0−6.00 −0.8 −6.00 −0.6 −6.00 −0.4 −6.00 −0.2 −6.00 0.0 −6.00 0.2 −6.000.4 −6.00 0.6 −6.00 0.8 −6.00 1.0 −6.00 1.2 −6.00 1.4 −6.00 1.6 −6.001.8 −6.00 2.0 −6.00 2.2 −6.50 2.4 −5.50 2.6 −4.50 2.8 −7.00 3.0 −4.003.2 −7.50 3.4 −1.00 3.6 4.00 3.8 3.00 4.0 2.00 Note: the region with anabsolute value of the radius smaller than or equal to 2.0 mm is thecentral region, and the region with the absolute value of the radiusgreater than 2.0 mm is the annular region. Note: the annular regionincludes, in order from the central point to a periphery, a low power ofcritical point of −6.50 D, a high power of critical point of −4.50 D, alow power of critical point of −7.00 D, a high power of critical pointof −4.00 D, a low power of critical point of −7.50 D, and a high powerof critical point of 4.00 D.

In the contact lens according to the 16th example, the values of theparameters of POWC, PPmax, DiC, DiP, PPH, PPM, PPL, PCP1, PCP2, PCP3,PCP4, PCP5 and PCP6 and the values of relevant conditions thereof arelisted in Table 25, and definitions of the aforementioned parameters canrefer to the 1st example.

TABLE 25 16th example PowC (D) −6.00 PPmax (D 4.00 |PPmax − POWC| (D)10.00 DiC (mm) 4 DiP (mm) 8.0 PPH (D) −4.50, −4.00, 4.00  PPM (D) — PPL(D) −6.50, −7.00, −7.50 |PPmax/PPH| −0.89, −1.00, 1.00  |PPmax/PPL|−0.62, −0.57, −0.53 PCP1 (D) −6.50 PCP2 (D) −4.50 PCP3 (D) −7.00 PCP4(D) −4.00 PCP5 (D) −7.50 PCP6 (D) 4.00 PCP1 − POWC (D) −0.50 PCP2 − PCP1(D) 2.00 PCP3 − PCP2 (D) −2.50 PCP4 − PCP3 (D) 3.00 PCP5 − PCP4 (D)−3.50 PCP6 − PCP5 (D) 11.50 (PCP2 − PCP1)/(PCP1 − POWC) −4.00

In the contact lens according to the 16th example, a first criticalpoint is CP1, a second critical point is CP2, a third critical point isCP3, a fourth critical point is CP4, a fifth critical point is CP5, anda sixth critical point is CP6. The classes of the aforementionedcritical points of the 16th example are listed in Table 26.

TABLE 26 16th example CP1 CL CP2 CH CP3 CL CP4 CH CP5 CL CP6 CH

17th Example

In the 17th example, the contact lens includes a central region, anannular region and a peripheral region. The central region includes acentral point O of the contact lens. The annular region symmetricallysurrounds the central region. The peripheral region symmetricallysurrounds the annular region. The peripheral region can include at leastone color pattern portion. At least one light blocking ring can bedisposed outside the central region. The structure of the contact lensof the 17th example can refer to FIG. 1. The color pattern portion canrefer to FIG. 2A to FIG. 3C. The light blocking ring can refer to FIG. 4to FIG. 11. The annular region includes four high critical points and amedium critical point. The contact lens of the 17th example can includea cycloplegic agent according to practical demands.

18th Example

In the 18th example, the contact lens includes a central region, anannular region and a peripheral region. The central region includes acentral point O of the contact lens. The annular region symmetricallysurrounds the central region. The peripheral region symmetricallysurrounds the annular region. The peripheral region can include at leastone color pattern portion. At least one light blocking ring can bedisposed outside the central region. The structure of the contact lensof the 18th example can refer to FIG. 1. The color pattern portion canrefer to FIG. 2A to FIG. 3C. The light blocking ring can refer to FIG. 4to FIG. 11. The annular region includes four low critical points. Thecontact lens of the 18th example can include a cycloplegic agentaccording to practical demands.

19th Example

In the 19th example, the contact lens includes a central region, anannular region and a peripheral region. The central region includes acentral point O of the contact lens. The annular region symmetricallysurrounds the central region. The peripheral region symmetricallysurrounds the annular region.

The peripheral region can include at least one color pattern portion. Atleast one light blocking ring can be disposed outside the centralregion. The structure of the contact lens of the 19th example can referto FIG. 1. The color pattern portion can refer to FIG. 2A to FIG. 3C.The light blocking ring can refer to FIG. 4 to FIG. 11. The annularregion includes four high critical points, two medium critical pointsand a low critical point. The contact lens of the 19th example caninclude a cycloplegic agent according to practical demands.

20th Example

In the 20th example, the contact lens includes a central region, anannular region and a peripheral region. The central region includes acentral point O of the contact lens. The annular region symmetricallysurrounds the central region. The peripheral region symmetricallysurrounds the annular region. The peripheral region can include at leastone color pattern portion. At least one light blocking ring can bedisposed outside the central region. The structure of the contact lensof the 20th example can refer to FIG. 1. The color pattern portion canrefer to FIG. 2A to FIG. 3C. The light blocking ring can refer to FIG. 4to FIG. 11. The annular region includes a high critical point, a mediumcritical point and four low critical points. The contact lens of the20th example can include a cycloplegic agent according to practicaldemands.

21st Example

In the 21st example, the contact lens includes a central region, anannular region and a peripheral region. The central region includes acentral point O of the contact lens. The annular region symmetricallysurrounds the central region. The peripheral region symmetricallysurrounds the annular region. The peripheral region can include at leastone color pattern portion. At least one light blocking ring can bedisposed outside the central region. The structure of the contact lensof the 21st example can refer to FIG. 1. The color pattern portion canrefer to FIG. 2A to FIG. 3C. The light blocking ring can refer to FIG. 4to FIG. 11. The annular region includes four high critical points andtwo low critical points. The contact lens of the 21st example caninclude a cycloplegic agent according to practical demands.

Please refer to Table 27 and FIG. 21 simultaneously. The radius and thecorrespondent diopter of the contact lens of the 21st example are listedin Table 27. FIG. 21 shows a relationship between the radius and thediopter of the contact lens of the 21st example (the negative radius hasan opposite direction with the positive radius).

TABLE 27 21st example radius (mm) diopter (D) −4.0 0.00 −3.8 −0.50 −3.6−1.00 −3.4 1.00 −3.2 −0.50 −3.0 −2.00 −2.8 4.50 −2.6 11.00 −2.4 8.00−2.2 5.00 −2.0 7.00 −1.8 5.00 −1.6 3.00 −1.4 1.00 −1.2 0 −1.0 0 −0.8 0−0.6 0 −0.4 0 −0.2 0 0.0 0 0.2 0 0.4 0 0.6 0 0.8 0 1.0 0 1.2 0 1.4 1.001.6 3.00 1.8 5.00 2.0 7.00 2.2 5.00 2.4 8.00 2.6 11.00 2.8 4.50 3.0−2.00 3.2 −0.50 3.4 1.00 3.6 −1.00 3.8 −0.50 4.0 0.00 Note: the regionwith an absolute value of the radius smaller than or equal to 1.2 mm isthe central region, and the region with the absolute value of the radiusgreater than 1.2 mm is the annular region. Note: the annular regionincludes, in order from the central point to a periphery, a high powerof critical point of 7.00 D, a high power of critical point of 5.00 D, ahigh power of critical point of 11.00 D, a low power of critical pointof −2.00 D, a high power of critical point of 1.00 D, and a low power ofcritical point of −0.50 D.

In the contact lens according to the 21st example, the values of theparameters of POWC, PPmax, DiC, DiP, PPH, PPM, PPL, PCP1, PCP2, PCP3,PCP4, POPS and PCP6 and the values of relevant conditions thereof arelisted in Table 28, and definitions of the aforementioned parameters canrefer to the 1st example.

TABLE 28 21st example PowC (D) 0.00 PPmax (D 11.00 |PPmax − POWC| (D)11.00 DiC (mm) 2.4 DiP (mm) 8.0 PPH (D) 7.00, 5.00, 11.00, 1.00 PPM (D)— PPL (D) −2.00, −0.50 |PPmax/PPH| 1.57, 2.20, 1.00, 11.00 |PPmax/PPL|−5.50, −22   PCP1 (D) 7.00 PCP2 (D) 5.00 PCP3 (D) 11.00 PCP4 (D) −2.00PCP5 (D) 1.00 PCP6 (D) −0.50 PCP1 − POWC (D) 7.00 PCP2 − PCP1 (D) −2.00PCP3 − PCP2 (D) 6.00 PCP4 − PCP3 (D) −13.00 PCP5 − PCP4 (D) 3.00 PCP6 −PCP5 (D) −1.50 (PCP2 − PCP1)/(PCP1 − POWC) −0.29

In the contact lens according to the 21st example, a first criticalpoint is CP1, a second critical point is CP2, a third critical point isCP3, a fourth critical point is CP4, a fifth critical point is CP5, anda sixth critical point is CP6. The classes of the aforementionedcritical points of the 21st example are listed in Table 29.

TABLE 29 21st example CP1 CH CP2 CH CP3 CH CP4 CL CP5 CH CP6 CL

22nd Example

In the 22nd example, the contact lens includes a central region, anannular region and a peripheral region. The central region includes acentral point O of the contact lens. The annular region symmetricallysurrounds the central region. The peripheral region symmetricallysurrounds the annular region. The peripheral region can include at leastone color pattern portion. At least one light blocking ring can bedisposed outside the central region. The structure of the contact lensof the 22nd example can refer to FIG. 1. The color pattern portion canrefer to FIG. 2A to FIG. 3C. The light blocking ring can refer to FIG. 4to FIG. 11. The annular region includes two high critical points, amedium critical point and four low critical points. The contact lens ofthe 22nd example can include a cycloplegic agent according to practicaldemands.

23rd Example

In the 23rd example, the contact lens includes a central region, anannular region and a peripheral region. The central region includes acentral point O of the contact lens. The annular region symmetricallysurrounds the central region. The peripheral region symmetricallysurrounds the annular region. The peripheral region can include at leastone color pattern portion. At least one light blocking ring can bedisposed outside the central region. The structure of the contact lensof the 23rd example can refer to FIG. 1. The color pattern portion canrefer to FIG. 2A to FIG. 3C. The light blocking ring can refer to FIG. 4to FIG. 11. The annular region includes four high critical points, threemedium critical points and three low critical points. The contact lensof the 23rd example can include a cycloplegic agent according topractical demands.

24th Example

In the 24th example, the contact lens includes a central region, anannular region and a peripheral region. The central region includes acentral point O of the contact lens. The annular region symmetricallysurrounds the central region. The peripheral region symmetricallysurrounds the annular region. The peripheral region can include at leastone color pattern portion. At least one light blocking ring can bedisposed outside the central region. The structure of the contact lensof the 24th example can refer to FIG. 1. The color pattern portion canrefer to FIG. 2A to FIG. 3C. The light blocking ring can refer to FIG. 4to FIG. 11. The annular region includes three high critical points, amedium critical point and four low critical points. The contact lens ofthe 24th example can include a cycloplegic agent according to practicaldemands.

25th Example

In the 25th example, the contact lens includes a central region, anannular region and a peripheral region. The central region includes acentral point O of the contact lens. The annular region symmetricallysurrounds the central region. The peripheral region symmetricallysurrounds the annular region. The peripheral region can include at leastone color pattern portion. At least one light blocking ring can bedisposed outside the central region. The structure of the contact lensof the 25th example can refer to FIG. 1. The color pattern portion canrefer to FIG. 2A to FIG. 3C. The light blocking ring can refer to FIG. 4to FIG. 11. The annular region includes four high critical points, twomedium critical points and four low critical points. The contact lens ofthe 25th example can include a cycloplegic agent according to practicaldemands.

26th Example

In the 26th example, the contact lens includes a central region, anannular region and a peripheral region. The central region includes acentral point O of the contact lens. The annular region symmetricallysurrounds the central region. The peripheral region symmetricallysurrounds the annular region. The peripheral region can include at leastone color pattern portion. At least one light blocking ring can bedisposed outside the central region. The structure of the contact lensof the 26th example can refer to FIG. 1. The color pattern portion canrefer to FIG. 2A to FIG. 3C. The light blocking ring can refer to FIG. 4to FIG. 11. The annular region includes two high critical points and alow critical point. The contact lens of the 26th example can include acycloplegic agent according to practical demands.

Please refer to Table 30 and FIG. 22 simultaneously. The radius and thecorrespondent diopter of the contact lens of the 26th example are listedin Table 30. FIG. 22 shows a relationship between the radius and thediopter of the contact lens of the 26th example (the negative radius hasan opposite direction with the positive radius).

TABLE 30 26th example radius (mm) diopter (D) −4.0 5.00 −3.8 6.50 −3.68.00 −3.4 4.63 −3.2 1.25 −3.0 −2.13 −2.8 −6.50 −2.6 −3.50 −2.4 −1.50−2.2 0 −2.0 2.50 −1.8 1.88 −1.6 1.25 −1.4 0.63 −1.2 0.00 −1.0 −0.25 −0.8−0.25 −0.6 −0.25 −0.4 −0.25 −0.2 −0.25 0.0 −0.25 0.2 −0.25 0.4 −0.25 0.6−0.25 0.8 −0.25 1.0 −0.25 1.2 0.00 1.4 0.63 1.6 1.25 1.8 1.88 2.0 2.502.2 0 2.4 −1.50 2.6 −3.50 2.8 −6.50 3.0 −2.13 3.2 1.25 3.4 4.63 3.6 8.003.8 6.50 4.0 5.00 Note: the region with an absolute value of the radiussmaller than or equal to 1.0 mm is the central region, and the regionwith the absolute value of the radius greater than 1.0 mm is the annularregion. Note: the annular region includes, in order from the centralpoint to a periphery, a high power of critical point of 2.50 D, a lowpower of critical point of −6.50 D, and a high power of critical pointof 8.00 D.

In the contact lens according to the 26th example, the values of theparameters of POWC, PPmax, DiC, DiP, PPH, PPM, PPL, PCP1, PCP2, PCP3,PCP4, POPS and PCP6 and the values of relevant conditions thereof arelisted in Table 31, and definitions of the aforementioned parameters canrefer to the 1st example.

TABLE 31 26th example PowC (D) −0.25 PPmax (D 8.00 |PPmax − POWC| (D)8.25 DiC (mm) 2 DiP (mm) 8.0 PPH (D) 2.50, 8.00 PPM (D) — PPL (D) −6.50|PPmax/PPH| 3.2, 1.0 |PPmax/PPL| −1.23 PCP1 (D) 2.50 PCP2 (D) −6.50 PCP3(D) 8.00 PCP4 (D) — PCP5 (D) — PCP6 (D) — PCP1 − POWC (D) 2.75 PCP2 −PCP1 (D) −9.00 PCP3 − PCP2 (D) 14.50 PCP4 − PCP3 (D) — PCP5 − PCP4 (D) —PCP6 − PCP5 (D) — (PCP2 − PCP1)/(PCP1 − POWC) −3.27

In the contact lens according to the 26th example, a first criticalpoint is CP1, a second critical point is CP2, a third critical point isCP3, a fourth critical point is CP4, a fifth critical point is CP5, anda sixth critical point is CP6. The classes of the aforementionedcritical points of the 26th example are listed in Table 32.

TABLE 32 26th example CP1 CH CP2 CL CP3 CH CP4 — CP5 — CP6 —

27th Example

In the 27th example, the contact lens includes a central region, anannular region and a peripheral region. The central region includes acentral point O of the contact lens. The annular region symmetricallysurrounds the central region. The peripheral region symmetricallysurrounds the annular region. The peripheral region can include at leastone color pattern portion. At least one light blocking ring can bedisposed outside the central region. The structure of the contact lensof the 27th example can refer to FIG. 1. The color pattern portion canrefer to FIG. 2A to FIG. 3C. The light blocking ring can refer to FIG. 4to FIG. 11. The annular region includes two high critical points and alow critical point. The contact lens of the 27th example can include acycloplegic agent according to practical demands.

Please refer to Table 33 and FIG. 23 simultaneously. The radius and thecorrespondent diopter of the contact lens of the 27th example are listedin Table 33. FIG. 23 shows a relationship between the radius and thediopter of the contact lens of the 27th example (the negative radius hasan opposite direction with the positive radius).

TABLE 33 27th example radius (mm) diopter (D) −4.0 8.00 −3.8 9.67 −3.611.33 −3.4 13.00 −3.2 9.13 −3.0 5.25 −2.8 1.38 −2.6 −2.50 −2.4 −0.50−2.2 1.50 −2.0 3.50 −1.8 5.50 −1.6 4.45 −1.4 3.40 −1.2 2.35 −1.0 1.30−0.8 0.00 −0.6 0.00 −0.4 0.00 −0.2 0.00 0.0 0.00 0.2 0.00 0.4 0.00 0.60.00 0.8 0.00 1.0 1.30 1.2 2.35 1.4 3.40 1.6 4.45 1.8 5.50 2.0 3.50 2.21.50 2.4 −0.50 2.6 −2.50 2.8 1.38 3.0 5.25 3.2 9.13 3.4 13.00 3.6 11.333.8 9.67 4.0 8.00 Note: the region with an absolute value of the radiussmaller than or equal to 0.8 mm is the central region, and the regionwith the absolute value of the radius greater than 0.8 mm is the annularregion. Note: the annular region includes, in order from the centralpoint to a periphery, a high power of critical point of 5.50 D, a lowpower of critical point of −2.50 D, and a high power of critical pointof 13.00 D.

In the contact lens according to the 27th example, the values of theparameters of POWC, PPmax, DiC, DiP, PPH, PPM, PPL, PCP1, PCP2, PCP3,PCP4, POPS and PCP6 and the values of relevant conditions thereof arelisted in Table 34, and definitions of the aforementioned parameters canrefer to the 1st example.

TABLE 34 27th example PowC (D) 0.00 PPmax (D 13.00 |PPmax − POWC| (D)13.00 DiC (mm) 1.6 DiP (mm) 8.0 PPH (D) 5.50, 13.00 PPM (D) — PPL (D)−2.50 |PPmax/PPH| 2.36, 1.00  |PPmax/PPL| −5.2 PCP1 (D) 5.50 PCP2 (D)−2.50 PCP3 (D) 13.00 PCP4 (D) — PCP5 (D) — PCP6 (D) — PCP1 − POWC (D)5.50 PCP2 − PCP1 (D) −8.00 PCP3 − PCP2 (D) 15.50 PCP4 − PCP3 (D) — PCP5− PCP4 (D) — PCP6 − PCP5 (D) — (PCP2 − PCP1)/(PCP1 − POWC) −1.45

In the contact lens according to the 27th example, a first criticalpoint is CP1, a second critical point is CP2, a third critical point isCP3, a fourth critical point is CP4, a fifth critical point is CP5, anda sixth critical point is CP6. The classes of the aforementionedcritical points of the 27th example are listed in Table 35.

TABLE 35 27th example CP1 CH CP2 CL CP3 CH CP4 — CP5 — CP6 —

28th Example

In the 28th example, the contact lens includes a central region, anannular region and a peripheral region. The central region includes acentral point O of the contact lens. The annular region symmetricallysurrounds the central region. The peripheral region symmetricallysurrounds the annular region. The peripheral region can include at leastone color pattern portion. At least one light blocking ring can bedisposed outside the central region. The structure of the contact lensof the 28th example can refer to FIG. 1. The color pattern portion canrefer to FIG. 2A to FIG. 3C. The light blocking ring can refer to FIG. 4to FIG. 11. The annular region includes two high critical points and alow critical point. The contact lens of the 28th example can include acycloplegic agent according to practical demands.

Please refer to Table 36 and FIG. 24 simultaneously. The radius and thecorrespondent diopter of the contact lens of the 28th example are listedin Table 36. FIG. 24 shows a relationship between the radius and thediopter of the contact lens of the 28th example (the negative radius hasan opposite direction with the positive radius).

TABLE 36 28th example radius (mm) diopter (D) −4.0 0.50 −3.8 0.38 −3.60.25 −3.4 5.17 −3.2 10.08 −3.0 15.00 −2.8 12.42 −2.6 9.83 −2.4 7.25 −2.24.67 −2.0 2.08 −1.8 −0.50 −1.6 −0.42 −1.4 −0.33 −1.2 −0.25 −1.0 −0.25−0.8 −0.25 −0.6 −0.25 −0.4 −0.25 −0.2 −0.25 0.0 −0.25 0.2 −0.25 0.4−0.25 0.6 −0.25 0.8 −0.25 1.0 −0.25 1.2 −0.25 1.4 −0.33 1.6 −0.42 1.8−0.50 2.0 2.08 2.2 4.67 2.4 7.25 2.6 9.83 2.8 12.42 3.0 15.00 3.2 10.083.4 5.17 3.6 0.25 3.8 0.38 4.0 0.50 Note: the region with an absolutevalue of the radius smaller than or equal to 1.2 mm is the centralregion, and the region with the absolute value of the radius greaterthan 1.2 mm is the annular region. Note: the annular region includes, inorder from the central point to a periphery, a low power of criticalpoint of −0.50 D, a high power of critical point of 15.00 D, and a highpower of critical point of 0.25 D.

In the contact lens according to the 28th example, the values of theparameters of POWC, PPmax, DiC, DiP, PPH, PPM, PPL, PCP1, PCP2, PCP3,PCP4, POPS and PCP6 and the values of relevant conditions thereof arelisted in Table 37, and definitions of the aforementioned parameters canrefer to the 1st example.

TABLE 37 28th example PowC (D) −0.25 PPmax (D 15.00 |PPmax − POWC| (D)15.25 DiC (mm) 2.4 DiP (mm) 8.0 PPH (D) 15.00, 0.25  PPM (D) — PPL (D)−0.50 |PPmax/PPH| 1.00, 60.00 |PPmax/PPL| −30 PCP1 (D) −0.50 PCP2 (D)15.00 PCP3 (D) 0.25 PCP4 (D) — PCP5 (D) — PCP6 (D) — PCP1 − POWC (D)−0.25 PCP2 − PCP1 (D) 15.50 PCP3 − PCP2 (D) −14.75 PCP4 − PCP3 (D) —PCP5 − PCP4 (D) — PCP6 − PCP5 (D) — (PCP2 − PCP1)/(PCP1 − POWC) −62.00

In the contact lens according to the 28th example, a first criticalpoint is CP1, a second critical point is CP2, a third critical point isCP3, a fourth critical point is CP4, a fifth critical point is CP5, anda sixth critical point is CP6. The classes of the aforementionedcritical points of the 28th example are listed in Table 38.

TABLE 38 28th example CP1 CL CP2 CH CP3 CH CP4 — CP5 — CP6 —

29th Example

In the 29th example, the contact lens includes a central region, anannular region and a peripheral region. The central region includes acentral point O of the contact lens. The annular region symmetricallysurrounds the central region. The peripheral region symmetricallysurrounds the annular region. The peripheral region can include at leastone color pattern portion. At least one light blocking ring can bedisposed outside the central region. The structure of the contact lensof the 29th example can refer to FIG. 1. The color pattern portion canrefer to FIG. 2A to FIG. 3C. The light blocking ring can refer to FIG. 4to FIG. 11. The annular region includes two high critical points and alow critical point. The contact lens of the 29th example can include acycloplegic agent according to practical demands.

Please refer to Table 39 and FIG. 25 simultaneously. The radius and thecorrespondent diopter of the contact lens of the 29th example are listedin Table 39. FIG. 25 shows a relationship between the radius and thediopter of the contact lens of the 29th example (the negative radius hasan opposite direction with the positive radius).

TABLE 39 29th example radius (mm) diopter (D) −4.0 5.50 −3.8 4.88 −3.64.25 −3.4 3.63 −3.2 3.00 −3.0 4.88 −2.8 6.75 −2.6 8.63 −2.4 10.50 −2.26.75 −2.0 3.00 −1.8 −0.75 −1.6 −4.50 −1.4 0.50 −1.2 0.50 −1.0 0.50 −0.80.50 −0.6 0.50 −0.4 0.50 −0.2 0.50 0.0 0.50 0.2 0.50 0.4 0.50 0.6 0.500.8 0.50 1.0 0.50 1.2 0.50 1.4 0.50 1.6 −4.50 1.8 −0.75 2.0 3.00 2.26.75 2.4 10.50 2.6 8.63 2.8 6.75 3.0 4.88 3.2 3.00 3.4 3.63 3.6 4.25 3.84.88 4.0 5.50 Note: the region with an absolute value of the radiussmaller than or equal to 1.4 mm is the central region, and the regionwith the absolute value of the radius greater than 1.4 mm is the annularregion. Note: the annular region includes, in order from the centralpoint to a periphery, a low power of critical point of −4.50 D, a highpower of critical point of 10.50 D, and a high power of critical pointof 3.00 D.

In the contact lens according to the 29th example, the values of theparameters of POWC, PPmax, DiC, DiP, PPH, PPM, PPL, PCP1, PCP2, PCP3,PCP4, POPS and PCP6 and the values of relevant conditions thereof arelisted in Table 40, and definitions of the aforementioned parameters canrefer to the 1st example.

TABLE 40 29th example PowC (D) 0.50 PPmax (D 10.50 |PPmax − POWC| (D)10.00 DiC (mm) 2.8 DiP (mm) 8.0 PPH (D) 10.50, 3.00  PPM (D) — PPL (D)−4.50 |PPmax/PPH| 1.00, 3.50 |PPmax/PPL| −2.33 PCP1 (D) −4.50 PCP2 (D)10.50 PCP3 (D) 3.00 PCP4 (D) — PCP5 (D) — PCP6 (D) — PCP1 − POWC (D)−5.00 PCP2 − PCP1 (D) 15.00 PCP3 − PCP2 (D) −7.50 PCP4 − PCP3 (D) — PCP5− PCP4 (D) — PCP6 − PCP5 (D) — (PCP2 − PCP1)/(PCP1 − POWC) −3.00

In the contact lens according to the 29th example, a first criticalpoint is CP1, a second critical point is CP2, a third critical point isCP3, a fourth critical point is CP4, a fifth critical point is CP5, anda sixth critical point is CP6. The classes of the aforementionedcritical points of the 29th example are listed in Table 41.

TABLE 41 29th example CP1 CL CP2 CH CP3 CH CP4 — CP5 — CP6 —

30th Example

In the 30th example, the contact lens includes a central region, anannular region and a peripheral region. The central region includes acentral point O of the contact lens. The annular region symmetricallysurrounds the central region. The peripheral region symmetricallysurrounds the annular region. The peripheral region can include at leastone color pattern portion. At least one light blocking ring can bedisposed outside the central region. The structure of the contact lensof the 30th example can refer to FIG. 1. The color pattern portion canrefer to FIG. 2A to FIG. 3C. The light blocking ring can refer to FIG. 4to FIG. 11. The annular region includes two high critical points and amedium critical point. The contact lens of the 30th example can includea cycloplegic agent according to practical demands.

Please refer to Table 42 and FIG. 26 simultaneously. The radius and thecorrespondent diopter of the contact lens of the 30th example are listedin Table 42. FIG. 26 shows a relationship between the radius and thediopter of the contact lens of the 30th example (the negative radius hasan opposite direction with the positive radius).

TABLE 42 30th example radius (mm) diopter (D) −4.0 5.00 −3.8 5.83 −3.66.67 −3.4 7.50 −3.2 6.36 −3.0 5.21 −2.8 4.07 −2.6 2.93 −2.4 1.79 −2.20.64 −2.0 −0.50 −1.8 0.17 −1.6 0.83 −1.4 1.50 −1.2 1.00 −1.0 0.50 −0.80.00 −0.6 −0.50 −0.4 −0.50 −0.2 −0.50 0.0 −0.50 0.2 −0.50 0.4 −0.50 0.6−0.50 0.8 0.00 1.0 0.50 1.2 1.00 1.4 1.50 1.6 0.83 1.8 0.17 2.0 −0.502.2 0.64 2.4 1.79 2.6 2.93 2.8 4.07 3.0 5.21 3.2 6.36 3.4 7.50 3.6 6.673.8 5.83 4.0 5.00 Note: the region with an absolute value of the radiussmaller than or equal to 0.6 mm is the central region, and the regionwith the absolute value of the radius greater than 0.6 mm is the annularregion. Note: the annular region includes, in order from the centralpoint to a periphery, a high power of critical point of 1.50 D, a mediumpower of critical point of −0.50 D, and a high power of critical pointof 7.50 D.

In the contact lens according to the 30th example, the values of theparameters of POWC, PPmax, DiC, DiP, PPH, PPM, PPL, PCP1, PCP2, PCP3,PCP4, PCP5 and PCP6 and the values of relevant conditions thereof arelisted in Table 43, and definitions of the aforementioned parameters canrefer to the 1st example.

TABLE 43 30th example PowC (D) −0.50 PPmax (D 7.50 |PPmax − POWC| (D)8.00 DiC (mm) 1.2 DiP (mm) 8.0 PPH (D) 1.50, 7.50 PPM (D) −0.50 PPL (D)— |PPmax/PPH| 5.00, 1.00 |PPmax/PPL| — PCP1 (D) 1.50 PCP2 (D) −0.50 PCP3(D) 7.50 PCP4 (D) — PCP5 (D) — PCP6 (D) — PCP1 − POWC (D) 2.00 PCP2 −PCP1 (D) −2.00 PCP3 − PCP2 (D) 8.00 PCP4 − PCP3 (D) — PCP5 − PCP4 (D) —PCP6 − PCP5 (D) — (PCP2 − PCP1)/(PCP1 − POWC) −1.00

In the contact lens according to the 30th example, a first criticalpoint is CP1, a second critical point is CP2, a third critical point isCP3, a fourth critical point is CP4, a fifth critical point is CP5, anda sixth critical point is CP6. The classes of the aforementionedcritical points of the 30th example are listed in Table 44.

TABLE 44 30th example C P 1 CH C P 2 CM C P 3 CH C P 4 — C P 5 — C P 6 —

According to the aforementioned examples, with the contact lensaccording to present disclosure including at least one critical point,the defocus degree can be enhanced by stage and the defocus degree canbe moderated gradually, which can effectively moderate the increasedegree of the diopter away from the central region, so that the wearcomfort can be enhanced, and the possibility of long term treatment canbe enhanced.

According to the contact lens of the present disclosure, the centralregion can provide a clear focusing function for the central vision ofthe wearer. Also, the diopter of the central region can be less than themyopia diopter of the wearer by 0.25 D to 0.5 D for easing the weardiscomfort. The central region includes the central point of the contactlens, and the diopter thereof is constant.

According to the contact lens of the present disclosure, the annularregion can prevent myopia or control myopia. A maximum diameter of theannular region can be 8 mm. The annular region can be disposed with atleast one light blocking ring or color pattern portion (which isextended from the peripheral region to the annular region).

According to the contact lens of the present disclosure, the peripheralregion can enable the contact lens to attach to the eye ball andprovides a support function. The peripheral region can be disposed withat least one color pattern portion or at least one light blocking ring(which is extended from the annular region to the peripheral region).The peripheral region is an annular area where a diameter thereof isgreater than 8 mm.

According to the contact lens of the present disclosure, the colorpattern portion is mainly disposed at the peripheral region and can beextended to the annular region (i.e., only a partial of the colorpattern portion is located at the annular region). A pattern of thecolor pattern portion is usually irregular. The pattern of the colorpattern portion can be, but is not limited to, a radial shape, a petalshape or an annular shape. Each of the color pattern portion has acolor, and the color can be selected from red, orange, yellow, green,blue, indigo, purple, black, white, silver or gold. When the color ofthe color pattern portion is black, a maximum outer diameter thereof isgreater than 12.0 mm. When the contact lens is divided into fourquadrants of A, B, C and D, each of the quadrant is bounded by ahorizontal axis and a vertical axis, and the central point of thecontact lens is the center of the four quadrants, at least two quadrantscan have repeated patterns so as to form symmetry, which allowsdifferent quadrants to have an identical effect for reducing straylight. When there are more repeated patterns in the four quadrants, theconsistency of reducing stray light can be enhanced. The pattern of thecolor pattern portion can be designed with identification function forobserve side and reverse side, which can provide the wearer with thefunction of wearing correctness.

According to the contact lens of the present disclosure, the lightblocking ring is disposed at the area outside the central region.Specifically, the light blocking ring is mainly disposed at the annularregion and can be extended to the peripheral region (i.e., only apartial of the light blocking ring is located at the peripheral region).The light blocking ring is usually an evenly distributed arrangement,and can be in monochrome, a dotted distribution, a single ring, multiplerings, etc. A color of the light blocking ring can be selected from red,orange, yellow, green, blue, indigo, purple, black, white, silver orgold.

According to the contact lens of the present disclosure, a minimumaverage transmittance for visible light of the light blocking ring canbe less than 50%. Alternatively, the minimum average transmittance forvisible light of the light blocking ring can be less than 40%.Alternatively, the minimum average transmittance for visible light ofthe light blocking ring can be less than 30%. Alternatively, the minimumaverage transmittance for visible light of the light blocking ring canbe less than 15%. The average transmittance for visible light can bemeasured as follows. Select any point of the light blocking ring as themeasured point for measuring the average transmittance for visible light(wavelength range is 400 nm to 700 nm). The minimum of the averagetransmittances for visible light of the points of the light blockingring can be regarded as the minimum average transmittance for visiblelight of the light blocking ring. In general, a minimum averagetransmittance for visible light of a black light blocking ring can beless than 10%, and a minimum average transmittance for visible light ofa semitransparent light blocking ring can be less than 50%.

According to the contact lens of the present disclosure, a criticalpoint is a point where a slope of tangent line equals to 0 in thediagram which shows a relationship between a radius and a diopter of thecontact lens. In other words, the tangent line of the critical point isperpendicular to the Y axis (which represents the D value), and the twopoints, located at both sides of the critical point, which are closestto the critical point have the D values simultaneously greater than orsimultaneously less than the power of critical point. The number of thecritical points is decided as follows. Select any radius line segmentwhich starts from the central point of the contact lens and ends to aperiphery of the contact lens. Draw a diagram which shows a relationshipbetween a radius and a diopter of the radius line segment, and thencount the number of the critical points in the annular region on theradius line segment. The critical points may include high criticalpoints, medium critical points and low critical points. Moreover, thecritical points with an identical D value are only counted once.

According to the contact lens of the present disclosure, the D valuerefers to the power of diopter.

According to the contact lens of the present disclosure, the names ofthe critical points are decided according to the order from a center(i.e., the central point) to a periphery of the contact lens, wherein acritical point closest to the center is a first critical point (also canbe named as Critical Point 1, CP1), and the rest critical points towardsthe periphery are a second critical point, a third critical point, andso on.

According to the contact lens of the present disclosure, a power of afirst critical point (also can be named as Power of Critical Point 1,PCP1) is the diopter of the first critical point, a power of a secondcritical point (also can be named as Power of Critical Point 2, PCP2) isthe diopter of the second critical point, and so on.

According to the contact lens of the present disclosure, the contactlens can be transparent, and an average transmittance for visible lightthereof is greater than 92%. Alternatively, the contact lens can beadded with a blue dye, and an average transmittance for visible lightthereof is greater than 83%. Alternatively, the contact lens can beadded with a UV absorber, and an average transmittance for visible lightthereof is greater than 91%. Alternatively, the contact lens can beadded with a blue blocker, and an average transmittance for visiblelight thereof is greater than 75%.

According to the present disclosure, the cycloplegic agent can includebut is not limited to atropine((3-endo)-8-methyl-8-azabicyclo[3.2.1]oct-3-yl tropate), tropicamide(N-ethyl-3-hydroxy-2-phenyl-N-(4-pyridinylmethyl)propanamide),cyclopentolate (2-(dimethylamino)ethyl(1-hydroxycyclopentyl)(phenyl)acetate), homatropine((3-endo)-8-methyl-8-azabicyclo[3.2.1]oct-3-yl hydroxy(phenyl)acetate),scopolamine((1R,2R,4S,5S,7S)-9-methyl-3-oxa-9-azatricyclo[3.3.1.02,4]non-7-yl(2S)-3-hydroxy-2-phenylpropanoate),eucatropine (1,2,2,6-tetramethyl-4-piperidinyl hydroxy(phenyl)acetate)or the salt thereof. The cycloplegic agent, also known as a mydriaticagent, belongs to a parasympathetic blocker, i.e., a non-selectivem-type muscarinic receptor blocker, which can control the paralysis andrelaxation of the ciliary muscle of pupils by blocking the muscarinicreceptor so as to enlarge the pupil.

Although the present disclosure has been described in considerabledetail with reference to certain embodiments thereof, other embodimentsare possible. Therefore, their spirit and scope of the appended claimsshould no be limited to the description of the embodiments containerherein.

It will be apparent to those skilled in the art that variousmodifications and variations can be made to the structure of the presentdisclosure without departing from the scope or spirit of the disclosure.In view of the foregoing, it is intended that the present disclosurecover modifications and variations of this disclosure provided they fallwithin the scope of the following claims.

What is claimed is:
 1. A contact lens, comprising: a central regioncomprising a central point of the contact lens; an annular regionsymmetrically surrounding the central region; and a peripheral regionsymmetrically surrounding the annular region; wherein the annular regioncomprises one high power of critical point, the peripheral regioncomprises at least one light blocking ring, a minimum averagetransmittance for visible light of the light blocking ring is less than50%, a maximum diameter of the central region is DiC, a maximum diopterof the annular region is PPmax, a diopter of the central region is POWC,and the following conditions are satisfied:2.0 mm≤DiC;4.0 D≤PPmax; and−8.00 D≤POWC≤−0.25 D.
 2. The contact lens of claim 1, wherein themaximum diameter of the central region is DiC, and the followingcondition is satisfied:2.0 mm≤DiC≤4.5 mm.
 3. The contact lens of claim 1, wherein the maximumdiopter of the annular region is PPmax, and the following condition issatisfied:7.0 D≤PPmax≤15.00 D.
 4. The contact lens of claim 3, wherein the diopterof the central region is POWC, and the following condition is satisfied:−7.00 D≤POWC≤−1.00 D.
 5. The contact lens of claim 4, wherein thediopter of the central region is POWC, the maximum diopter of theannular region is PPmax, and the following condition is satisfied:2.00 D≤|PPmax−POWC|≤15.50 D.
 6. The contact lens of claim 3, wherein thehigh power of critical point is PPH, and the following condition issatisfied: −1.00 D≤PPH≤20.00 D.
 7. The contact lens of claim 6, whereinthe maximum diopter of the annular region is PPmax, the high power ofcritical point is PPH, and the following condition is satisfied:−3.00≤PPmax/PPH≤5.00.
 8. The contact lens of claim 1, wherein theperipheral region comprises at least one color pattern portion.
 9. Thecontact lens of claim 1, wherein a minimum inner diameter of the lightblocking ring is DBi, and the following condition is satisfied:3.5 mm≤DBi≤8.5 mm.
 10. The contact lens of claim 9, wherein a maximumouter diameter of the light blocking ring is DBo, and the followingcondition is satisfied:8.5 mm≤DBo≤13.0 mm.
 11. The contact lens of claim 1, wherein the annularregion comprises at least two powers of critical points, in order fromthe central point to a periphery, the two powers of critical points arethe power of the first critical point and the power of the secondcritical point, and the power of the second critical point is a lowpower of critical point.
 12. The contact lens of claim 11, wherein theannular region comprises at least three powers of critical points, inorder from the central point to the periphery, the three powers ofcritical points are the power of the first critical point, the power ofthe second critical point and a power of a third critical point, and thepower of the third critical point is a low power of critical point. 13.A contact lens product, comprising: the contact lens of claim 1; and animmersing solution, wherein the contact lens is immersed in theimmersing solution; wherein at least one of the contact lens and theimmersing solution comprises a cycloplegic agent.